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Yahalom-Ronen Y, Melamed S, Politi B, Erez N, Tamir H, Bar-On L, Ryvkin J, Leshkowitz D, Israeli O, Weiss S, Ben-Shmuel A, Barlev-Gross M, Cherry Mimran L, Achdout H, Paran N, Israely T. Induction of Superior Systemic and Mucosal Protective Immunity to SARS-CoV-2 by Nasal Administration of a VSV-ΔG-Spike Vaccine. Vaccines (Basel) 2024; 12:491. [PMID: 38793742 DOI: 10.3390/vaccines12050491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/21/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
The emergence of rapidly spreading variants of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) poses a major challenge to vaccines' protective efficacy. Intramuscular (IM) vaccine administration induces short-lived immunity but does not prevent infection and transmission. New vaccination strategies are needed to extend the longevity of vaccine protection, induce mucosal and systemic immunity and prevent viral transmission. The intranasal (IN) administration of the VSV-ΔG-spike vaccine candidate directly to mucosal surfaces yielded superior mucosal and systemic immunity at lower vaccine doses. Compared to IM vaccination in the K18-hACE2 model, IN vaccination preferentially induced mucosal IgA and T-cells, reduced the viral load at the site of infection, and ameliorated disease-associated brain gene expression. IN vaccination was protective even one year after administration. As most of the world population has been vaccinated by IM injection, we demonstrate the potential of a heterologous IM + IN vaccination regimen to induce mucosal immunity while maintaining systemic immunity. Furthermore, the IM + IN regimen prevented virus transmission in a golden Syrian hamster co-caging model. Taken together, we show that IN vaccination with VSV-ΔG-spike, either as a homologous IN + IN regimen or as a boost following IM vaccination, has a favorable potential over IM vaccination in inducing efficient mucosal immunity, long-term protection and preventing virus transmission.
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Affiliation(s)
- Yfat Yahalom-Ronen
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Sharon Melamed
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Boaz Politi
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Noam Erez
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Hadas Tamir
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Liat Bar-On
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Julia Ryvkin
- Bioinformatics Unit, Life Science Core Facilities, Weizmann Institute of Science, Rehovot 52621, Israel
| | - Dena Leshkowitz
- Bioinformatics Unit, Life Science Core Facilities, Weizmann Institute of Science, Rehovot 52621, Israel
| | - Ofir Israeli
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Shay Weiss
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Amir Ben-Shmuel
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Moria Barlev-Gross
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Lilach Cherry Mimran
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Hagit Achdout
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Nir Paran
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Tomer Israely
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
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2
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Shengule S, Alai S, Bhandare S, Patil S, Gautam M, Mangaonkar B, Gupta S, Shaligram U, Gairola S. Validation and Suitability Assessment of Multiplex Mesoscale Discovery Immunogenicity Assay for Establishing Serological Signatures Using Vaccinated, Non-Vaccinated and Breakthrough SARS-CoV-2 Infected Cases. Vaccines (Basel) 2024; 12:433. [PMID: 38675815 PMCID: PMC11053742 DOI: 10.3390/vaccines12040433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/12/2024] [Accepted: 03/23/2024] [Indexed: 04/28/2024] Open
Abstract
Antibody responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are multi-targeted and variable over time. Multiplex quantitative serological assays are needed to provide accurate and robust seropositivity data for the establishment of serological signatures during vaccination and or infection. We describe here the validation and evaluation of an electro-chemiluminescence (ECL)-based Mesoscale Discovery assay (MSD) for estimation of total and functional IgG relative to SARS-CoV-2 spike, nucleocapsid and receptor binding (RBD) proteins in human serum samples to establish serological signatures of SARS-CoV-2 natural infection and breakthrough cases. The 9-PLEX assay was validated as per ICH, EMA, and US FDA guidelines using a panel of sera samples, including the NIBSC/WHO reference panel (20/268). The assay demonstrated high specificity and selectivity in inhibition assays, wherein the homologous inhibition was more than 85% and heterologous inhibition was below 10%. The assay also met predetermined acceptance criteria for precision (CV < 20%), accuracy (70-130%) and dilutional linearity. The method's applicability to serological signatures was demonstrated using sera samples (n = 45) representing vaccinated, infected and breakthrough cases. The method was able to establish distinct serological signatures and thus provide a potential tool for seroprevalence of SARS-CoV-2 during vaccination or infection.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Sunil Gairola
- Clinical Bioanalytical Department, Serum Institute of India Pvt. Ltd., Pune 411028, India; (S.S.); (S.A.); (M.G.); (U.S.)
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3
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Gardner BJ, Kilpatrick AM. Predicting Vaccine Effectiveness for Hospitalization and Symptomatic Disease for Novel SARS-CoV-2 Variants Using Neutralizing Antibody Titers. Viruses 2024; 16:479. [PMID: 38543844 PMCID: PMC10975673 DOI: 10.3390/v16030479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 05/23/2024] Open
Abstract
The emergence of new virus variants, including the Omicron variant (B.1.1.529) of SARS-CoV-2, can lead to reduced vaccine effectiveness (VE) and the need for new vaccines or vaccine doses if the extent of immune evasion is severe. Neutralizing antibody titers have been shown to be a correlate of protection for SARS-CoV-2 and other pathogens, and could be used to quickly estimate vaccine effectiveness for new variants. However, no model currently exists to provide precise VE estimates for a new variant against severe disease for SARS-CoV-2 using robust datasets from several populations. We developed predictive models for VE against COVID-19 symptomatic disease and hospitalization across a 54-fold range of mean neutralizing antibody titers. For two mRNA vaccines (mRNA-1273, BNT162b2), models fit without Omicron data predicted that infection with the BA.1 Omicron variant increased the risk of hospitalization 2.8-4.4-fold and increased the risk of symptomatic disease 1.7-4.2-fold compared to the Delta variant. Out-of-sample validation showed that model predictions were accurate; all predictions were within 10% of observed VE estimates and fell within the model prediction intervals. Predictive models using neutralizing antibody titers can provide rapid VE estimates, which can inform vaccine booster timing, vaccine design, and vaccine selection for new virus variants.
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Affiliation(s)
- Billy J. Gardner
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95060, USA
| | - A. Marm Kilpatrick
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95060, USA
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4
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Willett JDS, Gravel A, Dubuc I, Gudimard L, Dos Santos Pereira Andrade AC, Lacasse É, Fortin P, Liu JL, Cervantes JA, Galvez JH, Djambazian HHV, Zwaig M, Roy AM, Lee S, Chen SH, Ragoussis J, Flamand L. SARS-CoV-2 rapidly evolves lineage-specific phenotypic differences when passaged repeatedly in immune-naïve mice. Commun Biol 2024; 7:191. [PMID: 38365933 PMCID: PMC10873417 DOI: 10.1038/s42003-024-05878-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 02/01/2024] [Indexed: 02/18/2024] Open
Abstract
The persistence of SARS-CoV-2 despite the development of vaccines and a degree of herd immunity is partly due to viral evolution reducing vaccine and treatment efficacy. Serial infections of wild-type (WT) SARS-CoV-2 in Balb/c mice yield mouse-adapted strains with greater infectivity and mortality. We investigate if passaging unmodified B.1.351 (Beta) and B.1.617.2 (Delta) 20 times in K18-ACE2 mice, expressing the human ACE2 receptor, in a BSL-3 laboratory without selective pressures, drives human health-relevant evolution and if evolution is lineage-dependent. Late-passage virus causes more severe disease, at organism and lung tissue scales, with late-passage Delta demonstrating antibody resistance and interferon suppression. This resistance co-occurs with a de novo spike S371F mutation, linked with both traits. S371F, an Omicron-characteristic mutation, is co-inherited at times with spike E1182G per Nanopore sequencing, existing in different within-sample viral variants at others. Both S371F and E1182G are linked to mammalian GOLGA7 and ZDHHC5 interactions, which mediate viral-cell entry and antiviral response. This study demonstrates SARS-CoV-2's tendency to evolve with phenotypic consequences, its evolution varying by lineage, and suggests non-dominant quasi-species contribution.
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Affiliation(s)
- Julian Daniel Sunday Willett
- Quantitative Life Sciences Ph.D. Program, McGill University, Montreal, QC, Canada
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada
| | - Annie Gravel
- Axe maladies infectieuses et immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec- Université Laval, Québec, Canada
| | - Isabelle Dubuc
- Axe maladies infectieuses et immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec- Université Laval, Québec, Canada
| | - Leslie Gudimard
- Axe maladies infectieuses et immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec- Université Laval, Québec, Canada
| | | | - Émile Lacasse
- Axe maladies infectieuses et immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec- Université Laval, Québec, Canada
| | - Paul Fortin
- Axe maladies infectieuses et immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec- Université Laval, Québec, Canada
- Centre de Recherche ARThrite-Arthrite, Recherche et Traitements, Université Laval, Québec, QC, Canada
- Division of Rheumatology, Department of Medicine, CHU de Québec-Université Laval, Québec, QC, Canada
| | - Ju-Ling Liu
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Jose Avila Cervantes
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Jose Hector Galvez
- Canadian Centre for Computational Genomics, McGill University, Montreal, QC, Canada
| | - Haig Hugo Vrej Djambazian
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Melissa Zwaig
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Anne-Marie Roy
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Sally Lee
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Shu-Huang Chen
- McGill Genome Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Jiannis Ragoussis
- McGill Genome Centre, McGill University, Montreal, QC, Canada.
- Department of Human Genetics, McGill University, Montreal, QC, Canada.
| | - Louis Flamand
- Axe maladies infectieuses et immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec- Université Laval, Québec, Canada.
- Département de microbiologie-infectiologie et d'immunologie, Université Laval, Québec, QC, Canada.
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5
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Strukcinskiene B, Valotkiene Z, Jurgaitis J, Grigoliene R, Genowska A. Immune Response to COVID-19 Vaccination in Frontline Healthcare Workers. Vaccines (Basel) 2024; 12:199. [PMID: 38400182 PMCID: PMC10891992 DOI: 10.3390/vaccines12020199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
This study evaluated the immune response to vaccination against COVID-19 in 534 healthcare frontline workers in Vilnius, Lithuania. The incidence of COVID-19 was reduced significantly after vaccination started in the healthcare sector. SARS-CoV-2 antibodies were detected in groups V-VII and this level of antibodies was found to be effective in preventing COVID-19. Sustained immune response was achieved after two vaccination doses, which remained stable for up to 6 months. After the booster dose, antibody levels remained high for an additional 12 months. Although SARS-CoV-2 antibody levels decreased after 6 months, even lower levels of antibodies provided protection against the Delta strain. The booster dose distributed the antibody titer in the high-level antibody groups, offering maximum protection at 12 months. However, even individuals with high antibody titers were observed to contract COVID-19 after vaccination with a booster dose and 6 months in the presence of the Omicron strain. Unfortunately, high levels of antibodies did not provide protection against the new strain of COVID-19 (the Omicron variant), posing a risk of infection. When comparing the antibody titer of vaccinated participants without COVID-19 and those with COVID-19, the change in antibodies after vaccination was significantly lower in infected participants. Individuals with comorbidities and specific conditions had lower antibody levels.
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Affiliation(s)
- Birute Strukcinskiene
- Faculty of Health Sciences, Klaipeda University, LT-92294 Klaipeda, Lithuania; (Z.V.); (J.J.)
| | - Zydre Valotkiene
- Faculty of Health Sciences, Klaipeda University, LT-92294 Klaipeda, Lithuania; (Z.V.); (J.J.)
- Epidemiology Sub-Division, Infection Control Department, Vilnius University Hospital Santaros Klinikos, LT-08661 Vilnius, Lithuania
| | - Jonas Jurgaitis
- Faculty of Health Sciences, Klaipeda University, LT-92294 Klaipeda, Lithuania; (Z.V.); (J.J.)
| | - Rasa Grigoliene
- Faculty of Marine Technologies and Natural Sciences, Klaipeda University, LT-92294 Klaipeda, Lithuania;
| | - Agnieszka Genowska
- Department of Public Health, Medical University of Bialystok, 15-295 Bialystok, Poland
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Abela IA, Schwarzmüller M, Ulyte A, Radtke T, Haile SR, Ammann P, Raineri A, Rueegg S, Epp S, Berger C, Böni J, Manrique A, Audigé A, Huber M, Schreiber PW, Scheier T, Fehr J, Weber J, Rusert P, Günthard HF, Kouyos RD, Puhan MA, Kriemler S, Trkola A, Pasin C. Cross-protective HCoV immunity reduces symptom development during SARS-CoV-2 infection. mBio 2024; 15:e0272223. [PMID: 38270455 PMCID: PMC10865973 DOI: 10.1128/mbio.02722-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/15/2023] [Indexed: 01/26/2024] Open
Abstract
Numerous clinical parameters link to severe coronavirus disease 2019, but factors that prevent symptomatic disease remain unknown. We investigated the impact of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) and endemic human coronavirus (HCoV) antibody responses on symptoms in a longitudinal children cohort (n = 2,917) and a cross-sectional cohort including children and adults (n = 882), all first exposed to SARS-CoV-2 (March 2020 to March 2021) in Switzerland. Saliva (n = 4,993) and plasma (n = 7,486) antibody reactivity to the four HCoVs (subunit S1 [S1]) and SARS-CoV-2 (S1, receptor binding domain, subunit S2 [S2], nucleocapsid protein) was determined along with neutralizing activity against SARS-CoV-2 Wuhan, Alpha, Delta, and Omicron (BA.2) in a subset of individuals. Inferred recent SARS-CoV-2 infection was associated with a strong correlation between mucosal and systemic SARS-CoV-2 anti-spike responses. Individuals with pre-existing HCoV-S1 reactivity exhibited significantly higher antibody responses to SARS-CoV-2 in both plasma (IgG regression coefficients = 0.20, 95% CI = [0.09, 0.32], P < 0.001) and saliva (IgG regression coefficient = 0.60, 95% CI = [0.088, 1.11], P = 0.025). Saliva neutralization activity was modest but surprisingly broad, retaining activity against Wuhan (median NT50 = 32.0, 1Q-3Q = [16.4, 50.2]), Alpha (median NT50 = 34.9, 1Q-3Q = [26.0, 46.6]), and Delta (median NT50 = 28.0, 1Q-3Q = [19.9, 41.7]). In line with a rapid mucosal defense triggered by cross-reactive HCoV immunity, asymptomatic individuals presented with higher pre-existing HCoV-S1 activity in plasma (IgG HKU1, odds ratio [OR] = 0.53, 95% CI = [0.29,0.97], P = 0.038) and saliva (total HCoV, OR = 0.55, 95% CI = [0.33, 0.91], P = 0.019) and higher SARS-CoV-2 reactivity in saliva (IgG S2 fold change = 1.26, 95% CI = [1.03, 1.54], P = 0.030). By investigating the systemic and mucosal immune responses to SARS-CoV-2 and HCoVs in a population without prior exposure to SARS-CoV-2 or vaccination, we identified specific antibody reactivities associated with lack of symptom development.IMPORTANCEKnowledge of the interplay between human coronavirus (HCoV) immunity and severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) infection is critical to understanding the coexistence of current endemic coronaviruses and to building knowledge potential future zoonotic coronavirus transmissions. This study, which retrospectively analyzed a large cohort of individuals first exposed to SARS-CoV-2 in Switzerland in 2020-2021, revealed several key findings. Pre-existing HCoV immunity, particularly mucosal antibody responses, played a significant role in improving SARS-CoV-2 immune response upon infection and reducing symptoms development. Mucosal neutralizing activity against SARS-CoV-2, although low in magnitude, retained activity against SARS-CoV-2 variants underlining the importance of maintaining local mucosal immunity to SARS-CoV-2. While the cross-protective effect of HCoV immunity was not sufficient to block infection by SARS-CoV-2, the present study revealed a remarkable impact on limiting symptomatic disease. These findings support the feasibility of generating pan-protective coronavirus vaccines by inducing potent mucosal immune responses.
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Affiliation(s)
- Irene A. Abela
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | | | - Agne Ulyte
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Thomas Radtke
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Sarah R. Haile
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Priska Ammann
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Alessia Raineri
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Sonja Rueegg
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Selina Epp
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | | | - Jürg Böni
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Amapola Manrique
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Annette Audigé
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Michael Huber
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Peter W. Schreiber
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Thomas Scheier
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Jan Fehr
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Jacqueline Weber
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Peter Rusert
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Huldrych F. Günthard
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Roger D. Kouyos
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Milo A. Puhan
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Susi Kriemler
- Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Zurich, Switzerland
| | - Alexandra Trkola
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Chloé Pasin
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Collegium Helveticum, Zurich, Switzerland
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7
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Algaissi A, Khan E, Tabassum H, Samreen S, Khamjan NA, Lohani M, Khan S, Kameli N, Madkhali F, Ahmad IZ. Campesterol and dithymoquinone as a potent inhibitors of SARS cov-2 main proteases-promising drug candidates for targeting its novel variants. J Biomol Struct Dyn 2024:1-15. [PMID: 38288958 DOI: 10.1080/07391102.2023.2301684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 09/13/2023] [Indexed: 02/16/2024]
Abstract
The sudden outbreak of the COVID-19 pandemic has currently taken approximately 2.4 million lives, with no specific medication and fast-tracked tested vaccines for prevention. These vaccines have their own adverse effects, which have severely affected the global healthcare system. The discovery of the main protease structure of coronavirus (Mpro/Clpro) has resulted in the identification of compounds having antiviral potential, especially from the herbal system. In this study, the computer-associated drug design tools were utilised to analyze the reported phytoconstituents of Nigella sativa for their antiviral activity against the main protease. Fifty-eight compounds were subjected to pharmacological parameter analysis to determine their lead likeness in comparison to the standard drugs (chloroquine and nirmatrelvir) used in the treatment of SARS-CoV-2. Nearly 31 compounds were docked against five different SARS-CoV-2 main proteases, and all compounds showed better binding affinity and inhibition constant against the proteases. However, dithymoquinone and campesterol displayed the best binding scores and hence were further subjected to dynamics and MMPBSA study for 100 ns. The stability analysis shows that dithymoquinone and campesterol show less variation in fluctuation in residues compared to standard complexes. Moreover, dithymoquinone exhibited higher binding affinity and favorable interaction followed by campesterol as compared to the standard drug. The in silico computational analysis provides a promising hit for regulating the main proteases activity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Abdullah Algaissi
- Department of Medical Laboratories Technology, College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
- Emerging and Epidemic Infectious Diseases Research Unit, Medical Research Center, Jazan University, Jazan, Saudi Arabia
| | - Elhan Khan
- Natural Products Laboratory, Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
| | - Heena Tabassum
- Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India
| | - Sadiyah Samreen
- Natural Products Laboratory, Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
| | - Nizar A Khamjan
- Department of Medical Laboratories Technology, College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Mohtashim Lohani
- Medical Research Centre, College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Saif Khan
- Department of Basic Dental and Medical Sciences, College of Dentistry, Ha'il University, Ha'il, Saudi Arabia
| | - Nader Kameli
- Department of Medical Laboratories Technology, College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Faisal Madkhali
- Department of Medical Laboratories Technology, College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Iffat Zareen Ahmad
- Natural Products Laboratory, Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
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8
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Mosqueda J, Hernández-Silva DJ, Vega-López MA, Vega-Rojas LJ, Beltrán R, Velasco-Elizondo A, Ramírez-Estudillo MDC, Fragoso-Saavedra M, Pérez-Almeida C, Hernández J, Melgoza-González EA, Hinojosa-Trujillo D, Mercado-Uriostegui MÁ, Mejía-López AS, Rivera-Ballesteros C, García-Gasca T. Evaluation of the humoral and mucosal immune response of a multiepitope vaccine against COVID-19 in pigs. Front Immunol 2023; 14:1276950. [PMID: 38179057 PMCID: PMC10765521 DOI: 10.3389/fimmu.2023.1276950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 11/28/2023] [Indexed: 01/06/2024] Open
Abstract
Introduction This study evaluated the immune response to a multiepitope recombinant chimeric protein (CHIVAX) containing B- and T-cell epitopes of the SARS-CoV-2 spike's receptor binding domain (RBD) in a translational porcine model for pre-clinical studies. Methods We generated a multiepitope recombinant protein engineered to include six coding conserved epitopes from the RBD domain of the SARS-CoV-2 S protein. Pigs were divided into groups and immunized with different doses of the protein, with serum samples collected over time to determine antibody responses by indirect ELISA and antibody titration. Peptide recognition was also analyzed by Western blotting. A surrogate neutralization assay with recombinant ACE2 and RBDs was performed. Intranasal doses of the immunogen were also prepared and tested on Vietnamese minipigs. Results When the immunogen was administered subcutaneously, it induced specific IgG antibodies in pigs, and higher doses correlated with higher antibody levels. Antibodies from immunized pigs recognized individual peptides in the multiepitope vaccine and inhibited RBD-ACE2 binding for five variants of concern (VOC). Comparative antigen delivery methods showed that both, subcutaneous and combined subcutaneous/intranasal approaches, induced specific IgG and IgA antibodies, with the subcutaneous approach having superior neutralizing activity. CHIVAX elicited systemic immunity, evidenced by specific IgG antibodies in the serum, and local mucosal immunity, indicated by IgA antibodies in saliva, nasal, and bronchoalveolar lavage secretions. Importantly, these antibodies demonstrated neutralizing activity against SARS-CoV-2 in vitro. Discussion The elicited antibodies recognized individual epitopes on the chimeric protein and demonstrated the capacity to block RBD-ACE2 binding of the ancestral SARS-CoV-2 strain and four VOCs. The findings provide proof of concept for using multiepitope recombinant antigens and a combined immunization protocol to induce a neutralizing immune response against SARS-CoV-2 in the pig translational model for preclinical studies.
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Affiliation(s)
- Juan Mosqueda
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - Diego Josimar Hernández-Silva
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - Marco Antonio Vega-López
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) del Instituto Politécnico Nacional, Departamento de Infectómica y Patogénesis Molecular, Laboratorio de Inmunobiología de las Mucosas, Ciudad de México, Mexico
| | - Lineth J. Vega-Rojas
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - Rolando Beltrán
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Andrés Velasco-Elizondo
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - María del Carmen Ramírez-Estudillo
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) del Instituto Politécnico Nacional, Departamento de Infectómica y Patogénesis Molecular, Laboratorio de Inmunobiología de las Mucosas, Ciudad de México, Mexico
| | - Mario Fragoso-Saavedra
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) del Instituto Politécnico Nacional, Departamento de Infectómica y Patogénesis Molecular, Laboratorio de Inmunobiología de las Mucosas, Ciudad de México, Mexico
| | - Chyntia Pérez-Almeida
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - Jesús Hernández
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C, Hermosillo, Mexico
| | - Edgar A. Melgoza-González
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C, Hermosillo, Mexico
| | - Diana Hinojosa-Trujillo
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C, Hermosillo, Mexico
| | - Miguel Ángel Mercado-Uriostegui
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - Alma Susana Mejía-López
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - Carlos Rivera-Ballesteros
- Immunology and Vaccines Laboratory, Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Carretera a Chichimequillas, Santiago de Querétaro, Querétaro, Mexico
| | - Teresa García-Gasca
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Querétaro, Mexico
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9
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Moyo-Gwete T, Richardson SI, Keeton R, Hermanus T, Spencer H, Manamela NP, Ayres F, Makhado Z, Motlou T, Tincho MB, Benede N, Ngomti A, Baguma R, Chauke MV, Mennen M, Adriaanse M, Skelem S, Goga A, Garrett N, Bekker LG, Gray G, Ntusi NAB, Riou C, Burgers WA, Moore PL. Homologous Ad26.COV2.S vaccination results in reduced boosting of humoral responses in hybrid immunity, but elicits antibodies of similar magnitude regardless of prior infection. PLoS Pathog 2023; 19:e1011772. [PMID: 37943890 PMCID: PMC10684107 DOI: 10.1371/journal.ppat.1011772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 11/28/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023] Open
Abstract
The impact of previous SARS-CoV-2 infection on the durability of Ad26.COV2.S vaccine-elicited responses, and the effect of homologous boosting has not been well explored. We followed a cohort of healthcare workers for 6 months after receiving the Ad26.COV2.S vaccine and a further one month after they received an Ad26.COV2.S booster dose. We assessed longitudinal spike-specific antibody and T cell responses in individuals who had never had SARS-CoV-2 infection, compared to those who were infected with either the D614G or Beta variants prior to vaccination. Antibody and T cell responses elicited by the primary dose were durable against several variants of concern over the 6 month follow-up period, regardless of infection history. However, at 6 months after first vaccination, antibody binding, neutralization and ADCC were as much as 59-fold higher in individuals with hybrid immunity compared to those with no prior infection. Antibody cross-reactivity profiles of the previously infected groups were similar at 6 months, unlike at earlier time points, suggesting that the effect of immune imprinting diminishes by 6 months. Importantly, an Ad26.COV2.S booster dose increased the magnitude of the antibody response in individuals with no prior infection to similar levels as those with previous infection. The magnitude of spike T cell responses and proportion of T cell responders remained stable after homologous boosting, concomitant with a significant increase in long-lived early differentiated CD4 memory T cells. Thus, these data highlight that multiple antigen exposures, whether through infection and vaccination or vaccination alone, result in similar boosts after Ad26.COV2.S vaccination.
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Affiliation(s)
- Thandeka Moyo-Gwete
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Simone I. Richardson
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Roanne Keeton
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Tandile Hermanus
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Holly Spencer
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Nelia P. Manamela
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Frances Ayres
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Zanele Makhado
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Thopisang Motlou
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
| | - Marius B. Tincho
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Ntombi Benede
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Amkele Ngomti
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Richard Baguma
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Masego V. Chauke
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Mathilda Mennen
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
| | - Marguerite Adriaanse
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
| | - Sango Skelem
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
| | - Ameena Goga
- South African Medical Research Council, Cape Town, South Africa
| | - Nigel Garrett
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
- Discipline of Public Health Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Linda-Gail Bekker
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Desmond Tutu HIV Centre, Cape Town, South Africa
| | - Glenda Gray
- South African Medical Research Council, Cape Town, South Africa
| | - Ntobeko A. B. Ntusi
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Observatory, South Africa
| | - Catherine Riou
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Observatory, South Africa
| | - Wendy A. Burgers
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Observatory, South Africa
| | - Penny L. Moore
- SA MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Centre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
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10
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Seow J, Shalim ZA, Graham C, Kimuda S, Pillai A, Lechmere T, Kurshan A, Khimji AM, Snell LB, Nebbia G, Mant C, Waters A, Fox J, Malim MH, Doores KJ. Broad and potent neutralizing antibodies are elicited in vaccinated individuals following Delta/BA.1 breakthrough infection. mBio 2023; 14:e0120623. [PMID: 37747187 PMCID: PMC10653880 DOI: 10.1128/mbio.01206-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/02/2023] [Indexed: 09/26/2023] Open
Abstract
IMPORTANCE With the emergence of SARS-CoV-2 viral variants, there has been an increase in infections in vaccinated individuals. Here, we isolated monoclonal antibodies (mAbs) from individuals experiencing a breakthrough infection (Delta or BA.1) to determine how exposure to a heterologous Spike broadens the neutralizing antibody response at the monoclonal level. All mAbs isolated had reactivity to the Spike of the vaccine and infection variant. While many mAbs showed reduced neutralization of current circulating variants, we identified mAbs with broad and potent neutralization of BA.2.75.2, XBB, XBB.1.5, and BQ.1.1 indicating the presence of conserved epitopes on Spike. These results indicate that variant-based vaccine boosters have the potential to broaden the vaccine response.
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Affiliation(s)
- Jeffrey Seow
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Zayed A. Shalim
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Carl Graham
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Simon Kimuda
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Aswin Pillai
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Thomas Lechmere
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Ashwini Kurshan
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Atika M. Khimji
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Luke B. Snell
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
- Department of Infectious Diseases, Centre for Clinical Infection and Diagnostics Research, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Gaia Nebbia
- Department of Infectious Diseases, Centre for Clinical Infection and Diagnostics Research, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Christine Mant
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
- Department of Infectious Diseases, Infectious Diseases Biobank, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Anele Waters
- Harrison Wing, Guy's and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Julie Fox
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
- Harrison Wing, Guy's and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Michael H. Malim
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
| | - Katie J. Doores
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King’s College London, London, United Kingdom
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11
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Misset B, Piagnerelli M, Hoste E, Dardenne N, Grimaldi D, Michaux I, De Waele E, Dumoulin A, Jorens PG, van der Hauwaert E, Vallot F, Lamote S, Swinnen W, De Schryver N, Fraipont V, de Mey N, Dauby N, Layios N, Mesland JB, Meyfroidt G, Moutschen M, Compernolle V, Gothot A, Desmecht D, Taveira da Silva Pereira MI, Garigliany M, Najdovski T, Bertrand A, Donneau AF, Laterre PF. Convalescent Plasma for Covid-19-Induced ARDS in Mechanically Ventilated Patients. N Engl J Med 2023; 389:1590-1600. [PMID: 37889107 PMCID: PMC10755833 DOI: 10.1056/nejmoa2209502] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
BACKGROUND Passive immunization with plasma collected from convalescent patients has been regularly used to treat coronavirus disease 2019 (Covid-19). Minimal data are available regarding the use of convalescent plasma in patients with Covid-19-induced acute respiratory distress syndrome (ARDS). METHODS In this open-label trial, we randomly assigned adult patients with Covid-19-induced ARDS who had been receiving invasive mechanical ventilation for less than 5 days in a 1:1 ratio to receive either convalescent plasma with a neutralizing antibody titer of at least 1:320 or standard care alone. Randomization was stratified according to the time from tracheal intubation to inclusion. The primary outcome was death by day 28. RESULTS A total of 475 patients underwent randomization from September 2020 through March 2022. Overall, 237 patients were assigned to receive convalescent plasma and 238 to receive standard care. Owing to a shortage of convalescent plasma, a neutralizing antibody titer of 1:160 was administered to 17.7% of the patients in the convalescent-plasma group. Glucocorticoids were administered to 466 patients (98.1%). At day 28, mortality was 35.4% in the convalescent-plasma group and 45.0% in the standard-care group (P = 0.03). In a prespecified analysis, this effect was observed mainly in patients who underwent randomization 48 hours or less after the initiation of invasive mechanical ventilation. Serious adverse events did not differ substantially between the two groups. CONCLUSIONS The administration of plasma collected from convalescent donors with a neutralizing antibody titer of at least 1:160 to patients with Covid-19-induced ARDS within 5 days after the initiation of invasive mechanical ventilation significantly reduced mortality at day 28. This effect was mainly observed in patients who underwent randomization 48 hours or less after ventilation initiation. (Funded by the Belgian Health Care Knowledge Center; ClinicalTrials.gov number, NCT04558476.).
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Affiliation(s)
- Benoît Misset
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Michael Piagnerelli
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Eric Hoste
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Nadia Dardenne
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - David Grimaldi
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Isabelle Michaux
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Elisabeth De Waele
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Alexander Dumoulin
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Philippe G Jorens
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Emmanuel van der Hauwaert
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Frédéric Vallot
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Stoffel Lamote
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Walter Swinnen
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Nicolas De Schryver
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Vincent Fraipont
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Nathalie de Mey
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Nicolas Dauby
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Nathalie Layios
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Jean-Baptiste Mesland
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Geert Meyfroidt
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Michel Moutschen
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Veerle Compernolle
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - André Gothot
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Daniel Desmecht
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Maria I Taveira da Silva Pereira
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Mutien Garigliany
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Tome Najdovski
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Axelle Bertrand
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Anne-Françoise Donneau
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
| | - Pierre-François Laterre
- From the Departments of Intensive Care Medicine (B.M., N.L., A.B.), Infectious Diseases (M.M.), Immunohematology (A.G.), and Microbiology (M.I.T.S.P.), University Hospital of Liège, the Biostatistics Unit, Public Health Department (N. Dardenne, A.-F.D.), and the Department of Animal Pathology (D.D., M.G.), Liège University, and the Department of Intensive Care Medicine, Citadelle General Hospital (V.F.), Liège, the Department of Intensive Care Medicine, Centre Hospitalier Universitaire (CHU) de Charleroi-Marie Curie Hospital, Université Libre de Bruxelles, Charleroi (M.P.), the Department of Intensive Care Medicine, Ghent University Hospital (E. Hoste), and the Faculty of Medicine and Health Sciences (V.C.), Ghent University, Ghent, the Department of Intensive Care Medicine, Cliniques Universitaires de Bruxelles-Erasme, Université Libre de Bruxelles (D.G.), the Division of Infectious Diseases, Saint-Pierre University Hospital (N. Dauby), and the Department of Intensive Care Medicine, Saint-Luc University Hospital (J.-B.M., P.-F.L.), Brussels, the Department of Intensive Care, Université Catholique de Louvain (UCL), CHU UCL Namur, Yvoir (I.M.), the Department of Intensive Care Medicine, Brussels University Hospital, Vrije Universiteit Brussel, Jette (E.D.W.), the Department of Intensive Care Medicine, Delta General Hospital, Roeselare (A.D.), the Department of Intensive Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem (P.G.J.), the Department of Intensive Care Medicine, Imelda General Hospital, Bonheiden (E. Hauwaert), the Department of Intensive Care Medicine, Wallonie Picarde General Hospital, Tournai (F.V.), the Department of Intensive Care Medicine, Groeninge General Hospital, Kortrijk (S.L.), the Department of Intensive Care Medicine, Sint Blasius General Hospital, Dendermonde (W.S.), the Department of Intensive Care Medicine, Saint-Pierre Medical Clinic, Ottignies (N.D.S.), the Department of Intensive Care Medicine, Onze-Lieve-Vrouw General Hospital, Aalst (N.M.), the Department of Intensive Care Medicine, University Hospitals Leuven, Leuven (G.M.), Blood Services from the Red Cross, Mechelen (V.C.), Blood Services from the Red Cross, Suarlée (T.N.), and the Department of Intensive Care Medicine, Centre Hospitalier Régional Mons-Hainaut, Mons (P.-F.L.) - all in Belgium
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12
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Ghoula M, Deyawe Kongmeneck A, Eid R, Camproux AC, Moroy G. Comparative Study of the Mutations Observed in the SARS-CoV-2 RBD Variants of Concern and Their Impact on the Interaction with the ACE2 Protein. J Phys Chem B 2023; 127:8586-8602. [PMID: 37775095 PMCID: PMC10578311 DOI: 10.1021/acs.jpcb.3c01467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/20/2023] [Indexed: 10/01/2023]
Abstract
SARS-CoV-2 strains have made an appearance across the globe, causing over 757 million cases and over 6.85 million deaths at the time of writing. The emergence of these variants shows the amplitude of genetic variation to which the wild-type strains have been subjected. The rise of the different SARS-CoV-2 variants resulting from such genetic modification has significantly affected COVD-19's major impact on proliferation, virulence, and clinics. With the emergence of the variants of concern, the spike protein has been identified as a possible therapeutic target due to its critical role in binding to human cells and pathogenesis. These mutations could be linked to functional heterogeneity and use a different infection strategy. For example, the Omicron variant's multiple mutations should be carefully examined, as they represent one of the most widely spread strains and hint to us that there may be more genetic changes in the virus. As a result, we applied a common protocol where we reconstructed SARS-CoV-2 variants of concern and performed molecular dynamics simulations to study the stability of the ACE2-RBD complex in each variant. We also carried out free energy calculations to compare the binding and biophysical properties of the different SARS-CoV-2 variants when they interact with ACE2. Therefore, we were able to obtain consistent results and uncover new crucial residues that were essential for preserving a balance between maintaining a high affinity for ACE2 and the capacity to evade RBD-targeted antibodies. Our detailed structural analysis showed that SARS-CoV-2 variants of concern show a higher affinity for ACE2 compared to the Wuhan strain. Additionally, residues K417N and E484K/A might play a crucial role in antibody evasion, whereas Q498R and N501Y are specifically mutated to strengthen RBD affinity to ACE2 and, thereby, increase the viral effect of the COVID-19 virus.
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Affiliation(s)
- Mariem Ghoula
- Université de Paris, CNRS,
INSERM, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | - Audrey Deyawe Kongmeneck
- Université de Paris, CNRS,
INSERM, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | - Rita Eid
- Université de Paris, CNRS,
INSERM, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | - Anne-Claude Camproux
- Université de Paris, CNRS,
INSERM, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | - Gautier Moroy
- Université de Paris, CNRS,
INSERM, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
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13
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Wilks SH, Mühlemann B, Shen X, Türeli S, LeGresley EB, Netzl A, Caniza MA, Chacaltana-Huarcaya JN, Corman VM, Daniell X, Datto MB, Dawood FS, Denny TN, Drosten C, Fouchier RAM, Garcia PJ, Halfmann PJ, Jassem A, Jeworowski LM, Jones TC, Kawaoka Y, Krammer F, McDanal C, Pajon R, Simon V, Stockwell MS, Tang H, van Bakel H, Veguilla V, Webby R, Montefiori DC, Smith DJ. Mapping SARS-CoV-2 antigenic relationships and serological responses. Science 2023; 382:eadj0070. [PMID: 37797027 DOI: 10.1126/science.adj0070] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/23/2023] [Indexed: 10/07/2023]
Abstract
During the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, multiple variants escaping preexisting immunity emerged, causing reinfections of previously exposed individuals. Here, we used antigenic cartography to analyze patterns of cross-reactivity among 21 variants and 15 groups of human sera obtained after primary infection with 10 different variants or after messenger RNA (mRNA)-1273 or mRNA-1273.351 vaccination. We found antigenic differences among pre-Omicron variants caused by substitutions at spike-protein positions 417, 452, 484, and 501. Quantifying changes in response breadth over time and with additional vaccine doses, our results show the largest increase between 4 weeks and >3 months after a second dose. We found changes in immunodominance of different spike regions, depending on the variant an individual was first exposed to, with implications for variant risk assessment and vaccine-strain selection.
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Affiliation(s)
- Samuel H Wilks
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Barbara Mühlemann
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Xiaoying Shen
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Sina Türeli
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Eric B LeGresley
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Antonia Netzl
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Miguela A Caniza
- Department of Global Pediatric Medicine, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA
| | | | - Victor M Corman
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Xiaoju Daniell
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Michael B Datto
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | | | - Thomas N Denny
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Christian Drosten
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | | | - Patricia J Garcia
- School of Public Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Peter J Halfmann
- Influenza Research Institute, Department of Pathobiological Science, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Agatha Jassem
- BC Centre for Disease Control, Vancouver, British Columbia, Canada
| | - Lara M Jeworowski
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
| | - Terry C Jones
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Yoshihiro Kawaoka
- Influenza Research Institute, Department of Pathobiological Science, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
- The Research Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo, Japan
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Tokyo, Japan
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Cellular and Molecular Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Charlene McDanal
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | | | - Viviana Simon
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Cellular and Molecular Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- The Global Health and Emerging Pathogen Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Melissa S Stockwell
- Division of Child and Adolescent Health, Department of Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, and Department of Population and Family Health, Mailman School of Public Health, New York, NY, USA
| | - Haili Tang
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Harm van Bakel
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Vic Veguilla
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Richard Webby
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - David C Montefiori
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Derek J Smith
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
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14
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He R, Zheng X, Zhang J, Liu B, Wang Q, Wu Q, Liu Z, Chang F, Hu Y, Xie T, Liu Y, Chen J, Yang J, Teng S, Lu R, Pan D, Wang Y, Peng L, Huang W, Terzieva V, Liu W, Wang Y, Li YP, Qu X. SARS-CoV-2 spike-specific T FH cells exhibit unique responses in infected and vaccinated individuals. Signal Transduct Target Ther 2023; 8:393. [PMID: 37802996 PMCID: PMC10558553 DOI: 10.1038/s41392-023-01650-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 09/07/2023] [Accepted: 09/12/2023] [Indexed: 10/08/2023] Open
Abstract
Long-term humoral immunity to SARS-CoV-2 is essential for preventing reinfection. The production of neutralizing antibody (nAb) and B cell differentiation are tightly regulated by T follicular help (TFH) cells. However, the longevity and functional role of TFH cell subsets in COVID-19 convalescents and vaccine recipients remain poorly defined. Here, we show that SARS-CoV-2 infection and inactivated vaccine elicited both spike-specific CXCR3+ TFH cell and CXCR3- TFH cell responses, which showed distinct response patterns. Spike-specific CXCR3+ TFH cells exhibit a dominant and more durable response than CXCR3- TFH cells that positively correlated with antibody responses. A third booster dose preferentially expands the spike-specific CXCR3+ TFH cell subset induced by two doses of inactivated vaccine, contributing to antibody maturation and potency. Functionally, spike-specific CXCR3+ TFH cells have a greater ability to induce spike-specific antibody secreting cells (ASCs) differentiation compared to spike-specific CXCR3- TFH cells. In conclusion, the persistent and functional role of spike-specific CXCR3+ TFH cells following SARS-CoV-2 infection and vaccination may play an important role in antibody maintenance and recall response, thereby conferring long-term protection. The findings from this study will inform the development of SARS-CoV-2 vaccines aiming to induce long-term protective immune memory.
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Affiliation(s)
- Rongzhang He
- College of Basic Medical Sciences, Hengyang Medical School, University of South China & MOE Key Lab of Rare Pediatric Diseases, 421001, Hengyang, China
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Xingyu Zheng
- College of Basic Medical Sciences, Hengyang Medical School, University of South China & MOE Key Lab of Rare Pediatric Diseases, 421001, Hengyang, China
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Jian Zhang
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Bo Liu
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Qijie Wang
- The Central Hospital of Shaoyang, 422000, Shaoyang, China
| | - Qian Wu
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, 501180, Guangzhou, China
| | - Ziyan Liu
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Fangfang Chang
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, 501180, Guangzhou, China
| | - Yabin Hu
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Ting Xie
- The Central Hospital of Shaoyang, 422000, Shaoyang, China
| | - Yongchen Liu
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, 501180, Guangzhou, China
| | - Jun Chen
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Jing Yang
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Shishan Teng
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Rui Lu
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Dong Pan
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - You Wang
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
- School of Public Health, University of South China, 421001, Hengyang, China
| | - Liting Peng
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Weijin Huang
- National Institutes for Food and Drug Control, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products, Key Laboratory of Biological Product Quality Research and Evaluation of National Medical Products Administration, 102629, Beijing, China
| | - Velislava Terzieva
- Laboratory of OMICs Technologies, Institute of Biology and Immunology of Reproduction "Acad. Kiril Bratanov", Bulgarian Academy of Sciences, Sofia, 1113, Bulgaria
| | - Wenpei Liu
- College of Basic Medical Sciences, Hengyang Medical School, University of South China & MOE Key Lab of Rare Pediatric Diseases, 421001, Hengyang, China
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China
| | - Youchun Wang
- National Institutes for Food and Drug Control, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products, Key Laboratory of Biological Product Quality Research and Evaluation of National Medical Products Administration, 102629, Beijing, China.
| | - Yi-Ping Li
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, 501180, Guangzhou, China.
| | - Xiaowang Qu
- College of Basic Medical Sciences, Hengyang Medical School, University of South China & MOE Key Lab of Rare Pediatric Diseases, 421001, Hengyang, China.
- Translational Medicine Institute, The First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, 423000, Chenzhou, China.
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15
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Mühlemann B, Wilks SH, Baracco L, Bekliz M, Carreño JM, Corman VM, Davis-Gardner ME, Dejnirattisai W, Diamond MS, Douek DC, Drosten C, Eckerle I, Edara VV, Ellis M, Fouchier RAM, Frieman M, Godbole S, Haagmans B, Halfmann PJ, Henry AR, Jones TC, Katzelnick LC, Kawaoka Y, Kimpel J, Krammer F, Lai L, Liu C, Lusvarghi S, Meyer B, Mongkolsapaya J, Montefiori DC, Mykytyn A, Netzl A, Pollett S, Rössler A, Screaton GR, Shen X, Sigal A, Simon V, Subramanian R, Supasa P, Suthar M, Türeli S, Wang W, Weiss CD, Smith DJ. Comparative Analysis of SARS-CoV-2 Antigenicity across Assays and in Human and Animal Model Sera. bioRxiv 2023:2023.09.27.559689. [PMID: 37808679 PMCID: PMC10557678 DOI: 10.1101/2023.09.27.559689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
The antigenic evolution of SARS-CoV-2 requires ongoing monitoring to judge the immune escape of newly arising variants. A surveillance system necessitates an understanding of differences in neutralization titers measured in different assays and using human and animal sera. We compared 18 datasets generated using human, hamster, and mouse sera, and six different neutralization assays. Titer magnitude was lowest in human, intermediate in hamster, and highest in mouse sera. Fold change, immunodominance patterns and antigenic maps were similar among sera. Most assays yielded similar results, except for differences in fold change in cytopathic effect assays. Not enough data was available for conclusively judging mouse sera, but hamster sera were a consistent surrogate for human first-infection sera.
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Affiliation(s)
- Barbara Mühlemann
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Samuel H Wilks
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Lauren Baracco
- Center for Pathogen Research, Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Meriem Bekliz
- Department of Medicine, Faculty of Medicine, University of Geneva, Switzerland
- Centre for Emerging Viral Diseases, University Hospitals of Geneva and University of Geneva, Switzerland
| | - Juan Manuel Carreño
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Victor M Corman
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Meredith E Davis-Gardner
- Department of Pediatrics, Emory Vaccine Center, Emory National Primate Research Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Wanwisa Dejnirattisai
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
- Division of Emerging Infectious Disease, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkoknoi, Bangkok 10700, Thailand
| | - Michael S Diamond
- Departments of Medicine, Molecular Microbiology, Pathology & Immunology, Washington University School of Medicine, St. Louis, MO, USA
- Andrew M. and Jane M. Bursky the Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St. Louis, MO, USA
| | - Daniel C Douek
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Christian Drosten
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Isabella Eckerle
- Department of Medicine, Faculty of Medicine, University of Geneva, Switzerland
- Centre for Emerging Viral Diseases, University Hospitals of Geneva and University of Geneva, Switzerland
- Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland
| | - Venkata-Viswanadh Edara
- Department of Pediatrics, Emory Vaccine Center, Emory National Primate Research Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Madison Ellis
- Department of Pediatrics, Emory Vaccine Center, Emory National Primate Research Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Ron A M Fouchier
- Viroscience Department, Erasmus Medical Center, Rotterdam, Netherlands
| | - Matthew Frieman
- Center for Pathogen Research, Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Sucheta Godbole
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Bart Haagmans
- Viroscience Department, Erasmus Medical Center, Rotterdam, Netherlands
| | - Peter J Halfmann
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Amy R Henry
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Terry C Jones
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Leah C Katzelnick
- Viral Epidemiology and Immunity Unit, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yoshihiro Kawaoka
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
- The Research Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo 162-8655, Japan
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Tokyo 162-8655, Japan
| | - Janine Kimpel
- Institute of Virology, Department of Hygiene, Microbiology and Public Health, Medical University of Innsbruck, Peter-Mayr-Str. 4b, 6020 Innsbruck, Austria
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Cellular and Molecular Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lilin Lai
- Department of Pediatrics, Emory Vaccine Center, Emory National Primate Research Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Chang Liu
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
- Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK
| | - Sabrina Lusvarghi
- Division of Viral Products, Office of Vaccines Research and Review, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD 20903, USA
| | - Benjamin Meyer
- Centre of Vaccinology, Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Juthathip Mongkolsapaya
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
- Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK
| | - David C Montefiori
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Anna Mykytyn
- Viroscience Department, Erasmus Medical Center, Rotterdam, Netherlands
| | - Antonia Netzl
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Simon Pollett
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA
| | - Annika Rössler
- Institute of Virology, Department of Hygiene, Microbiology and Public Health, Medical University of Innsbruck, Peter-Mayr-Str. 4b, 6020 Innsbruck, Austria
| | - Gavin R Screaton
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Xiaoying Shen
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Alex Sigal
- Africa Health Research Institute, Durban, South Africa
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
| | - Viviana Simon
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Cellular and Molecular Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- The Global Health and Emerging Pathogen Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rahul Subramanian
- Office of Data Science and Emerging Technologies, Office of Science Management and Operations, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Piyada Supasa
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK
| | - Mehul Suthar
- Department of Pediatrics, Emory Vaccine Center, Emory National Primate Research Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Sina Türeli
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Wei Wang
- Division of Viral Products, Office of Vaccines Research and Review, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD 20903, USA
| | - Carol D Weiss
- Division of Viral Products, Office of Vaccines Research and Review, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD 20903, USA
| | - Derek J Smith
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
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16
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Dai YC, Lin YC, Ching LL, Tsai JJ, Ishikawa K, Tsai WY, Chen JJ, Nerurkar VR, Wang WK. Determining the Time of Booster Dose Based on the Half-Life and Neutralization Titers against SARS-CoV-2 Variants of Concern in Fully Vaccinated Individuals. Microbiol Spectr 2023; 11:e0408122. [PMID: 37428104 PMCID: PMC10434144 DOI: 10.1128/spectrum.04081-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 06/20/2023] [Indexed: 07/11/2023] Open
Abstract
Although mRNA-based COVID-19 vaccines reduce the risk of severe disease, hospitalization and death, vaccine effectiveness (VE) against infection and disease from variants of concern (VOC) wanes over time. Neutralizing antibodies (NAb) are surrogates of protection and are enhanced by a booster dose, but their kinetics and durability remain understudied. Current recommendation of a booster dose does not consider the existing NAb in each individual. Here, we investigated 50% neutralization (NT50) titers against VOC among COVID-19-naive participants receiving the Moderna (n = 26) or Pfizer (n = 25) vaccine for up to 7 months following the second dose, and determined their half-lives. We found that the time it took for NT50 titers to decline to 24, equivalent to 50% inhibitory dilution of 10 international units/mL, was longer in the Moderna (325/324/235/274 days for the D614G/alpha/beta/delta variants) group than in the Pfizer (253/252/174/226 days) group, which may account for the slower decline in VE of the Moderna vaccine observed in real-world settings and supports our hypothesis that measuring the NT50 titers against VOC, together with information on NAb half-lives, can be used to dictate the time of booster vaccination. Our study provides a framework to determine the optimal time of a booster dose against VOC at the individual level. In response to future VOC with high morbidity and mortality, a quick evaluation of NAb half-lives using longitudinal serum samples from clinical trials or research programs of different primary-series vaccinations and/or one or two boosters could provide references for determining the time of booster in different individuals. IMPORTANCE Despite improved understanding of the biology of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), the evolutionary trajectory of the virus is uncertain, and the concern of future antigenically distinct variants remains. Current recommendations for a COVID-19 vaccine booster dose are primarily based on neutralization capacity, effectiveness against circulating variants of concern (VOC), and other host factors. We hypothesized that measuring neutralizing antibody titers against SARS-CoV-2 VOC together with half-life information can be used to dictate the time of booster vaccination. Through detailed analysis of neutralizing antibodies against VOC among COVID-19-naive vaccinees receiving either of two mRNA vaccines, we found that the time it took for 50% neutralization titers to decline to a reference level of protection was longer in the Moderna than in the Pfizer group, which supports our hypothesis. In response to future VOC with potentially high morbidity and mortality, our proof-of-concept study provides a framework to determine the optimal time of a booster dose at the individual level.
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Affiliation(s)
- Yu-Ching Dai
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Yen-Chia Lin
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Lauren L. Ching
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
- Pacific Center for Emerging Infectious Diseases, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Jih-Jin Tsai
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kyle Ishikawa
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Wen-Yang Tsai
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
- Pacific Center for Emerging Infectious Diseases, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - John J. Chen
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Vivek R. Nerurkar
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
- Pacific Center for Emerging Infectious Diseases, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Wei-Kung Wang
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
- Pacific Center for Emerging Infectious Diseases, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
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17
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Wilks SH, Mühlemann B, Shen X, Türeli S, LeGresley EB, Netzl A, Caniza MA, Chacaltana-Huarcaya JN, Corman VM, Daniell X, Datto MB, Dawood FS, Denny TN, Drosten C, Fouchier RAM, Garcia PJ, Halfmann PJ, Jassem A, Jeworowski LM, Jones TC, Kawaoka Y, Krammer F, McDanal C, Pajon R, Simon V, Stockwell MS, Tang H, van Bakel H, Veguilla V, Webby R, Montefiori DC, Smith DJ. Mapping SARS-CoV-2 antigenic relationships and serological responses. bioRxiv 2023:2022.01.28.477987. [PMID: 35860221 PMCID: PMC9298128 DOI: 10.1101/2022.01.28.477987] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
During the SARS-CoV-2 pandemic, multiple variants escaping pre-existing immunity emerged, causing concerns about continued protection. Here, we use antigenic cartography to analyze patterns of cross-reactivity among a panel of 21 variants and 15 groups of human sera obtained following primary infection with 10 different variants or after mRNA-1273 or mRNA-1273.351 vaccination. We find antigenic differences among pre-Omicron variants caused by substitutions at spike protein positions 417, 452, 484, and 501. Quantifying changes in response breadth over time and with additional vaccine doses, our results show the largest increase between 4 weeks and >3 months post-2nd dose. We find changes in immunodominance of different spike regions depending on the variant an individual was first exposed to, with implications for variant risk assessment and vaccine strain selection.
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Affiliation(s)
- Samuel H Wilks
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Barbara Mühlemann
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Xiaoying Shen
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Sina Türeli
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Eric B LeGresley
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Antonia Netzl
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Miguela A Caniza
- Department of Global Pediatric Medicine, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA
| | | | - Victor M Corman
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Xiaoju Daniell
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Michael B Datto
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | | | - Thomas N Denny
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Christian Drosten
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | | | - Patricia J Garcia
- School of Public Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Peter J Halfmann
- Influenza Research Institute, Department of Pathobiological Science, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Agatha Jassem
- BC Centre for Disease Control, Vancouver, British Columbia, Canada
| | - Lara M Jeworowski
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
| | - Terry C Jones
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
- Institute of Virology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Centre for Infection Research (DZIF), partner site Charité, 10117 Berlin, Germany
| | - Yoshihiro Kawaoka
- Influenza Research Institute, Department of Pathobiological Science, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Division of Virology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
- The Research Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo, Japan
- Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), University of Tokyo, Tokyo, Japan
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Cellular and Molecular Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Charlene McDanal
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | | | - Viviana Simon
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Cellular and Molecular Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- The Global Health and Emerging Pathogen Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Melissa S Stockwell
- Division of Child and Adolescent Health, Department of Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, and Department of Population and Family Health, Mailman School of Public Health, New York, NY, USA
| | - Haili Tang
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Harm van Bakel
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Vic Veguilla
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Richard Webby
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - David C Montefiori
- Department of Surgery, Duke University School of Medicine, Durham, NC, USA
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Derek J Smith
- Center for Pathogen Evolution, Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
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18
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Yahalom-Ronen Y, Tamir H, Melamed S, Politi B, Achdout H, Erez N, Israeli O, Cohen-Gihon I, Chery Mimran L, Barlev-Gross M, Mandelboim M, Orr I, Feldmesser E, Weiss S, Beth-Din A, Paran N, Israely T. VSV-ΔG-Spike Candidate Vaccine Induces Protective Immunity and Protects K18-hACE2 Mice against SARS-CoV-2 Variants. Viruses 2023; 15:1364. [PMID: 37376662 DOI: 10.3390/v15061364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
Since the emergence of the original SARS-CoV-2, several variants were described, raising questions as to the ability of recently developed vaccine platforms to induce immunity and provide protection against these variants. Here, we utilized the K18-hACE2 mouse model to show that VSV-ΔG-spike vaccination provides protection against several SARS-CoV-2 variants: alpha, beta, gamma, and delta. We show an overall robust immune response, regardless of variant identity, leading to reduction in viral load in target organs, prevention of morbidity and mortality, as well as prevention of severe brain immune response, which follows infection with various variants. Additionally, we provide a comprehensive comparison of the brain transcriptomic profile in response to infection with different variants of SARS-CoV-2 and show how vaccination prevents these disease manifestations. Taken together, these results highlight the robust VSV-ΔG-spike protective response against diverse SARS-CoV-2 variants, as well as its promising potential against newly arising variants.
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Affiliation(s)
- Yfat Yahalom-Ronen
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Hadas Tamir
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Sharon Melamed
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Boaz Politi
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Hagit Achdout
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Noam Erez
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Ofir Israeli
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Inbar Cohen-Gihon
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Lilach Chery Mimran
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Moria Barlev-Gross
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Michal Mandelboim
- Central Virology Laboratory, Ministry of Health, Sheba Medical Center, Tel Hashomer, Ramat Gan 76100, Israel
| | - Irit Orr
- Bioinformatics Unit, Life Science Core Facilities, Weizmann Institute of Science, Rehovot 52621, Israel
| | - Ester Feldmesser
- Bioinformatics Unit, Life Science Core Facilities, Weizmann Institute of Science, Rehovot 52621, Israel
| | - Shay Weiss
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Adi Beth-Din
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Nir Paran
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
| | - Tomer Israely
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona 74100, Israel
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19
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Moyo-Gwete T, Richardson SI, Keeton R, Hermanus T, Spencer H, Manamela NP, Ayres F, Makhado Z, Motlou T, Tincho MB, Benede N, Ngomti A, Baguma R, Chauke MV, Mennen M, Adriaanse M, Skelem S, Goga A, Garrett N, Bekker LG, Gray G, Ntusi NA, Riou C, Burgers WA, Moore PL. Homologous Ad26.COV2.S vaccination results in reduced boosting of humoral responses in hybrid immunity, but elicits antibodies of similar magnitude regardless of prior infection. medRxiv 2023:2023.03.15.23287288. [PMID: 36993404 PMCID: PMC10055608 DOI: 10.1101/2023.03.15.23287288] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The impact of previous SARS-CoV-2 infection on the durability of Ad26.COV2.S vaccine-elicited responses, and the effect of homologous boosting has not been well explored. We followed a cohort of healthcare workers for 6 months after receiving the Ad26.COV2.S vaccine and a further one month after they received an Ad26.COV2.S booster dose. We assessed longitudinal spike-specific antibody and T cell responses in individuals who had never had SARS-CoV-2 infection, compared to those who were infected with either the D614G or Beta variants prior to vaccination. Antibody and T cell responses elicited by the primary dose were durable against several variants of concern over the 6 month follow-up period, regardless of infection history. However, at 6 months after first vaccination, antibody binding, neutralization and ADCC were as much as 33-fold higher in individuals with hybrid immunity compared to those with no prior infection. Antibody cross-reactivity profiles of the previously infected groups were similar at 6 months, unlike at earlier time points suggesting that the effect of immune imprinting diminishes by 6 months. Importantly, an Ad26.COV2.S booster dose increased the magnitude of the antibody response in individuals with no prior infection to similar levels as those with previous infection. The magnitude of spike T cell responses and proportion of T cell responders remained stable after homologous boosting, concomitant with a significant increase in long-lived early differentiated CD4 memory T cells. Thus, these data highlight that multiple antigen exposures, whether through infection and vaccination or vaccination alone, result in similar boosts after Ad26.COV2.S vaccination.
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Affiliation(s)
- Thandeka Moyo-Gwete
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Simone I. Richardson
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Roanne Keeton
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Tandile Hermanus
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Holly Spencer
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Nelia P. Manamela
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Frances Ayres
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Zanele Makhado
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Thopisang Motlou
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Marius B. Tincho
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Ntombi Benede
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Amkele Ngomti
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Richard Baguma
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Masego V. Chauke
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
| | - Mathilda Mennen
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
| | - Marguerite Adriaanse
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
| | - Sango Skelem
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
| | - Ameena Goga
- South African Medical Research Council, Cape Town, South Africa
| | - Nigel Garrett
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
- Discipline of Public Health Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Linda-Gail Bekker
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Desmond Tutu HIV Centre, Cape Town, South Africa
| | - Glenda Gray
- South African Medical Research Council, Cape Town, South Africa
| | - Ntobeko A.B. Ntusi
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Department of Medicine, University of Cape Town and Groote Schuur Hospital; Observatory, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town; Observatory, South Africa
- South African Medical Research Council Extramural Unit on Intersection of Non-communicable Diseases and Infectious Diseases, University of Cape Town, Cape Town, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Observatory, South Africa
| | - Catherine Riou
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Observatory, South Africa
| | - Wendy A. Burgers
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Division of Medical Virology, Department of Pathology; University of Cape Town; Observatory, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Observatory, South Africa
| | - Penny L. Moore
- National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory, South Africa
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
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20
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Coombes NS, Bewley KR, Le Duff Y, Hurley M, Smith LJ, Weldon TM, Osman K, Pullan S, Berry N, Hallis B, Charlton S, Hall Y, Funnell SGP. Assessment of the Biological Impact of SARS-CoV-2 Genetic Variation Using an Authentic Virus Neutralisation Assay with Convalescent Plasma, Vaccinee Sera, and Standard Reagents. Viruses 2023; 15:633. [PMID: 36992342 PMCID: PMC10056478 DOI: 10.3390/v15030633] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
In the summer of 2020, it became clear that the genetic composition of SARS-CoV-2 was changing rapidly. This was highlighted by the rapid emergence of the D614G mutation at that time. In the autumn of 2020, the project entitled “Agility” was initiated with funding from the Coalition for Epidemic Preparedness Innovations (CEPI) to assess new variants of SARS-CoV-2. The project was designed to reach out and intercept swabs containing live variant viruses in order to generate highly characterised master and working stocks, and to assess the biological consequences of the rapid genetic changes using both in vitro and in vivo approaches. Since November 2020, a total of 21 variants have been acquired and tested against either a panel of convalescent sera from early in the pandemic, and/or a panel of plasma from triple-vaccinated participants. A pattern of continuous evolution of SARS-CoV-2 has been revealed. Sequential characterisation of the most globally significant variants available to us, generated in real-time, indicated that the most recent Omicron variants appear to have evolved in a manner that avoids immunological recognition by convalescent plasma from the era of the ancestral virus when analysed in an authentic virus neutralisation assay.
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21
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Zhang S, Ma P, Orzechowski M, Lemmer A, Rzasa K, Bagnall J, Barkho S, Chen M, He L, Neitupski R, Tran V, Ackerman R, Gath E, Bond A, Frongillo G, Cleland T, Golas A, Gaca A, Fitzgerald M, Kelly K, Hazegh K, Dumont L, Hoffman C, Homer M, Marks P, Woolley A, Wong S, Gomez J, Livny J, Hung D. High-Throughput Neutralization and Serology Assays Reveal Correlated but Highly Variable Humoral Immune Responses in a Large Population of Individuals Infected with SARS-CoV-2 in the US between March and August 2020. mBio 2023;:e0352322. [PMID: 36786604 DOI: 10.1128/mbio.03523-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
The ability to measure neutralizing antibodies on large scale can be important for understanding features of the natural history and epidemiology of infection, as well as an aid in determining the efficacy of interventions, particularly in outbreaks such as the current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. Because of the assay's rapid scalability and high efficiency, serology measurements that quantify the presence rather than function of serum antibodies often serve as proxies of immune protection. Here, we report the development of a high-throughput, automated fluorescence-based neutralization assay using SARS-CoV-2 virus to quantify neutralizing antibody activity in patient specimens. We performed large-scale testing of over 19,000 COVID-19 convalescent plasma (CCP) samples from patients who had been infected with SARS-CoV-2 between March and August 2020 across the United States. The neutralization capacity of the samples was moderately correlated with serological measurements of anti-receptor-binding domain (RBD) IgG levels. The neutralizing antibody levels within these convalescent-phase serum samples were highly variable against the original USA-WA1/2020 strain with almost 10% of individuals who had had PCR-confirmed SARS-CoV-2 infection having no detectable antibodies either by serology or neutralization, and ~1/3 having no or low neutralizing activity. Discordance between neutralization and serology measurements was mainly due to the presence of non-IgG RBD isotypes. Meanwhile, natural infection with the earliest SARS-CoV-2 strain USA-WA1/2020 resulted in weaker neutralization of subsequent B.1.1.7 (alpha) and the B.1.351 (beta) variants, with 88% of samples having no activity against the BA.1 (omicron) variant. IMPORTANCE The ability to directly measure neutralizing antibodies on live SARS-CoV-2 virus in individuals can play an important role in understanding the efficacy of therapeutic interventions or vaccines. In contrast to functional neutralization assays, serological assays only quantify the presence of antibodies as a proxy of immune protection. Here, we have developed a high-throughput, automated neutralization assay for SARS-CoV-2 and measured the neutralizing activity of ~19,000 COVID-19 convalescent plasma (CCP) samples collected across the United States between March and August of 2020. These data were used to support the FDA's interpretation of CCP efficacy in patients with SARS-CoV-2 infection and their issuance of emergency use authorization of CCP in 2020.
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22
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Spinardi JR, Srivastava A. Hybrid Immunity to SARS-CoV-2 from Infection and Vaccination-Evidence Synthesis and Implications for New COVID-19 Vaccines. Biomedicines 2023; 11. [PMID: 36830907 DOI: 10.3390/biomedicines11020370] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
COVID-19 has taken a severe toll on the global population through infections, hospitalizations, and deaths. Elucidating SARS-CoV-2 infection-derived immunity has led to the development of multiple effective COVID-19 vaccines and their implementation into mass-vaccination programs worldwide. After ~3 years, a substantial proportion of the human population possesses immunity from infection and/or vaccination. With waning immune protection over time against emerging SARS-CoV-2 variants, it is essential to understand the duration of protection, breadth of coverage, and effects on reinfection. This targeted review summarizes available research literature on SARS-CoV-2 infection-derived, vaccination-elicited, and hybrid immunity. Infection-derived immunity has shown 93-100% protection against severe COVID-19 outcomes for up to 8 months, but reinfection is observed with some virus variants. Vaccination elicits high levels of neutralizing antibodies and a breadth of CD4+ and CD8+ T-cell responses. Hybrid immunity enables strong, broad responses, with high-quality memory B cells generated at 5- to 10-fold higher levels, versus infection or vaccination alone and protection against symptomatic disease lasting for 6-8 months. SARS-CoV-2 evolution into more transmissible and immunologically divergent variants has necessitated the updating of COVID-19 vaccines. To ensure continued protection against SARS-CoV-2 variants, regulators and vaccine technical committees recommend variant-specific or bivalent vaccines.
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23
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Khaleeq S, Sengupta N, Kumar S, Patel UR, Rajmani RS, Reddy P, Pandey S, Singh R, Dutta S, Ringe RP, Varadarajan R. Neutralizing Efficacy of Encapsulin Nanoparticles against SARS-CoV2 Variants of Concern. Viruses 2023; 15:346. [PMID: 36851560 PMCID: PMC9961482 DOI: 10.3390/v15020346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023] Open
Abstract
Rapid emergence of the SARS-CoV-2 variants has dampened the protective efficacy of existing authorized vaccines. Nanoparticle platforms offer a means to improve vaccine immunogenicity by presenting multiple copies of desired antigens in a repetitive manner which closely mimics natural infection. We have applied nanoparticle display combined with the SpyTag-SpyCatcher system to design encapsulin-mRBD, a nanoparticle vaccine displaying 180 copies of the monomeric SARS-CoV-2 spike receptor-binding domain (RBD). Here we show that encapsulin-mRBD is strongly antigenic and thermotolerant for long durations. After two immunizations, squalene-in-water emulsion (SWE)-adjuvanted encapsulin-mRBD in mice induces potent and comparable neutralizing antibody titers of 105 against wild-type (B.1), alpha, beta, and delta variants of concern. Sera also neutralizes the recent Omicron with appreciable neutralization titers, and significant neutralization is observed even after a single immunization.
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Affiliation(s)
- Sara Khaleeq
- Molecular Biophysics Unit (MBU), Indian Institute of Science, Bengaluru 560012, India
| | - Nayanika Sengupta
- Molecular Biophysics Unit (MBU), Indian Institute of Science, Bengaluru 560012, India
| | - Sahil Kumar
- Virology Unit, Institute of Microbial Technology, Council of Scientific and Industrial Research (CSIR), Chandigarh 160036, India
| | - Unnatiben Rajeshbhai Patel
- Mynvax Private Limited, 3rd Floor, Brigade MLR Centre, No. 50, Vani Vilas Road, Basavanagudi, Bengaluru 560004, India
| | - Raju S. Rajmani
- Molecular Biophysics Unit (MBU), Indian Institute of Science, Bengaluru 560012, India
| | - Poorvi Reddy
- Mynvax Private Limited, 3rd Floor, Brigade MLR Centre, No. 50, Vani Vilas Road, Basavanagudi, Bengaluru 560004, India
| | - Suman Pandey
- Mynvax Private Limited, 3rd Floor, Brigade MLR Centre, No. 50, Vani Vilas Road, Basavanagudi, Bengaluru 560004, India
| | - Randhir Singh
- Mynvax Private Limited, 3rd Floor, Brigade MLR Centre, No. 50, Vani Vilas Road, Basavanagudi, Bengaluru 560004, India
| | - Somnath Dutta
- Molecular Biophysics Unit (MBU), Indian Institute of Science, Bengaluru 560012, India
| | - Rajesh P. Ringe
- Virology Unit, Institute of Microbial Technology, Council of Scientific and Industrial Research (CSIR), Chandigarh 160036, India
| | - Raghavan Varadarajan
- Molecular Biophysics Unit (MBU), Indian Institute of Science, Bengaluru 560012, India
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24
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Faizuloev E, Gracheva A, Korchevaya E, Smirnova D, Samoilikov R, Pankratov A, Trunova G, Khokhlova V, Ammour Y, Petrusha O, Poromov A, Leneva I, Svitich O, Zverev V. Cold-adapted SARS-CoV-2 variants with different temperature sensitivity exhibit an attenuated phenotype and confer protective immunity. Vaccine 2023; 41:892-902. [PMID: 36528447 PMCID: PMC9744683 DOI: 10.1016/j.vaccine.2022.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/28/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
As novel SARS-CoV-2 Variants of Concern emerge, the efficacy of existing vaccines against COVID-19 is declining. A possible solution to this problem lies in the development of a live attenuated vaccine potentially able of providing cross-protective activity against a wide range of SARS-CoV-2 antigenic variants. Cold-adapted (ca) SARS-CoV-2 variants, Dubrovka-ca-B4 (D-B4) and Dubrovka-ca-D2 (D-D2), were obtained after long-term passaging of the Dubrovka (D) strain in Vero cells at reduced temperatures. Virulence, immunogenicity, and protective activity of SARS-CoV-2 variants were evaluated in experiments on intranasal infection of Syrian golden hamsters (Mesocricetus auratus). In animal model infecting with ca variants, the absence of body weight loss, the significantly lower viral titer and viral RNA concentration in animal tissues, the less pronounced inflammatory lesions in animal lungs as compared with the D strain indicated the reduced virulence of the virus variant. Single intranasal immunization with D-B4 and D-D2 variants induced the production of neutralizing antibodies in hamsters and protected them from infection with the D strain and the development of severe pneumonia. It was shown that for ca SARS-CoV-2 variants, the temperature-sensitive (ts) phenotype was not obligate for virulence reduction. Indeed, the D-B4 variant, which did not possess the ts phenotype but had lost the ability to infect human lung cells Calu-3, exhibited reduced virulence in hamsters. Consequently, the potential phenotypic markers of attenuation of ca SARS-CoV-2 variants are the ca phenotype, the ts phenotype, and the change in species specificity of the virus. This study demonstrates the great potential of SARS-CoV-2 cold adaptation as a strategy to develop a live attenuated COVID-19 vaccine.
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Affiliation(s)
- Evgeny Faizuloev
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia; Russian Medical Academy of Continuous Professional Education, Moscow, Russia.
| | | | | | - Daria Smirnova
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
| | - Roman Samoilikov
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
| | - Andrey Pankratov
- FSBI NMRRC of the Ministry of Health of the Russian Federation, P.A. Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | - Galina Trunova
- FSBI NMRRC of the Ministry of Health of the Russian Federation, P.A. Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | - Varvara Khokhlova
- FSBI NMRRC of the Ministry of Health of the Russian Federation, P.A. Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | - Yulia Ammour
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
| | - Olga Petrusha
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
| | - Artem Poromov
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia,Peoples' Friendship University of Russia, Department of Biochemistry, Moscow, Russia
| | - Irina Leneva
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
| | - Oxana Svitich
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia,I.M. Sechenov First Moscow State Medical University (Sechenov University), F.F. Erisman Institute of Public Health, Moscow, Russia
| | - Vitaly Zverev
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia,I.M. Sechenov First Moscow State Medical University (Sechenov University), F.F. Erisman Institute of Public Health, Moscow, Russia
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25
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Shkurnikov M, Nersisyan S, Averinskaya D, Chekova M, Polyakov F, Titov A, Doroshenko D, Vechorko V, Tonevitsky A. HLA-A*01:01 allele diminishing in COVID-19 patients population associated with non-structural epitope abundance in CD8+ T-cell repertoire. PeerJ 2023; 11:e14707. [PMID: 36691482 PMCID: PMC9864130 DOI: 10.7717/peerj.14707] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/15/2022] [Indexed: 01/19/2023] Open
Abstract
In mid-2021, the SARS-CoV-2 Delta variant caused the third wave of the COVID-19 pandemic in several countries worldwide. The pivotal studies were aimed at studying changes in the efficiency of neutralizing antibodies to the spike protein. However, much less attention was paid to the T-cell response and the presentation of virus peptides by MHC-I molecules. In this study, we compared the features of the HLA-I genotype in symptomatic patients with COVID-19 in the first and third waves of the pandemic. As a result, we could identify the diminishing of carriers of the HLA-A*01:01 allele in the third wave and demonstrate the unique properties of this allele. Thus, HLA-A*01:01-binding immunoprevalent epitopes are mostly derived from ORF1ab. A set of epitopes from ORF1ab was tested, and their high immunogenicity was confirmed. Moreover, analysis of the results of single-cell phenotyping of T-cells in recovered patients showed that the predominant phenotype in HLA-A*01:01 carriers is central memory T-cells. The predominance of T-lymphocytes of this phenotype may contribute to forming long-term T-cell immunity in carriers of this allele. Our results can be the basis for highly effective vaccines based on ORF1ab peptides.
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Affiliation(s)
- Maxim Shkurnikov
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia
| | - Stepan Nersisyan
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia,Institute of Molecular Biology, The National Academy of Sciences of the Republic of Armenia, Yerevan, Armenia,Armenian Bioinformatics Institute (ABI), Yerevan, Armenia,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Darya Averinskaya
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia
| | - Milena Chekova
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia
| | - Fedor Polyakov
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia
| | - Aleksei Titov
- National Research Center for Hematology, Moscow, Russia
| | | | | | - Alexander Tonevitsky
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
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26
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Wang S, Li J, Wang S, Ye Y, Li M, Liu Y, Chen B, Lai Y, Li L, Zhuang L, Peng S, Yang N, Zhang H, Xiao H. Impacts of delta and omicron variants on inactivated SARS-CoV-2 vaccine-induced T cell responses in patients with autoimmune diseases and healthy controls. Clin Transl Med 2023; 13:e1171. [PMID: 36639826 PMCID: PMC9839884 DOI: 10.1002/ctm2.1171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/24/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection causes coronavirus disease 2019 (COVID-19), which is still devastating economies and communities globally. The increasing infections of variants of concern (VOCs) in vaccinated population have raised concerns about the effectiveness of current vaccines. Patients with autoimmune diseases (PAD) under immunosuppressant treatments are facing higher risk of infection and potentially lower immune responses to SARS-CoV-2 vaccination. METHODS Blood samples were collected from PAD or healthy controls (HC) who finished two or three doses of inactivated vaccines. Spike peptides derived from wild-type strain, delta, omicron BA.1 were utilised to evaluate T cell responses and their cross-recognition of delta and omicron in HC and PAD by flow cytometry and ex vivo IFNγ-ELISpot. RESULTS We found that inactivated vaccine-induced spike-specific memory T cells were long-lasting in both PAD and HC. These spike-specific T cells were highly conserved and cross-recognized delta and omicron. Moreover, a third inactivated vaccine expanded spike-specific T cells that responded to delta and omicron spike peptides substantially in both PAD and HC. Importantly, the polyfunctionality of spike-specific memory T cells was preserved in terms of cytokine and cytotoxic responses. Although the extent of T cell responses was lower in PAD after two-dose, T cell responses were boosted to a greater magnitude in PAD by the third dose, bringing comparable spike-specific T cell immunity after the third dose. CONCLUSION Inactivated vaccine-induced spike-specific T cells remain largely intact against delta and omicron variants. This study expands our understanding of inactivated vaccine-induced T cell responses in PAD and HC, which could have important indications for vaccination strategy.
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Affiliation(s)
- Shuyi Wang
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Jin Li
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Shuang Wang
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Yujin Ye
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Mengyuan Li
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Yihao Liu
- Clinical Trials Unitthe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Binfeng Chen
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Yimei Lai
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Liubing Li
- Department of Laboratory MedicineThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Lili Zhuang
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Sui Peng
- Clinical Trials Unitthe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Niansheng Yang
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Hui Zhang
- Department of Rheumatologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina,Institue of Precision Medicinethe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Haipeng Xiao
- Department of Endocrinologythe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
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27
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Kurshan A, Snell LB, Prior L, Tam JCH, Graham C, Thangarajah R, Edgeworth JD, Nebbia G, Doores KJ. Endogenous antibody responses in REGN-COV2-treated SARS-CoV-2-infected individuals. Oxf Open Immunol 2023; 4:iqac012. [PMID: 36844257 PMCID: PMC9914479 DOI: 10.1093/oxfimm/iqac012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/21/2022] [Accepted: 12/20/2022] [Indexed: 01/09/2023] Open
Abstract
Neutralizing monoclonal antibodies (mAbs) targeting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Spike glycoprotein have been developed for the treatment of COVID-19. Whilst antibody therapy has been shown to reduce the risk of COVID-19-associated hospitalization and death, there is limited understanding of the endogenous immunity to SARS-CoV-2 generated in mAb-treated patients and therefore ongoing susceptibility to future infections. Here we measure the endogenous antibody response in SARS-CoV-2-infected individuals treated with REGN-COV2 (Ronapreve). We show that in the majority of unvaccinated, delta-infected REGN-COV2-treated individuals, an endogenous antibody response is generated, but, like untreated, delta-infected individuals, there was a limited neutralization breadth. However, some vaccinated individuals who were seronegative at SARS-CoV-2 infection baseline and some unvaccinated individuals failed to produce an endogenous immune response following infection and REGN-COV2 treatment demonstrating the importance of mAb therapy in some patient populations.
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Affiliation(s)
- Ashwini Kurshan
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, UK
| | - Luke B Snell
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, UK
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Lucie Prior
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, UK
| | - Jerry C H Tam
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, UK
| | - Carl Graham
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, UK
| | - Rajeni Thangarajah
- Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
- Department of Pharmacy, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Jonathan D Edgeworth
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Gaia Nebbia
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Katie J Doores
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, UK
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28
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Oliveira JR, Ruiz CMR, Machado RRG, Magawa JY, Daher IP, Urbanski AH, Schmitz GJH, Arcuri HA, Ferreira MA, Sasahara GL, de Medeiros GX, Júnior RCVS, Durigon EL, Boscardin SB, Rosa DS, Schechtman D, Nakaya HI, Cunha-Neto E, Gadermaier G, Kalil J, Coelho V, Santos KS. Immunodominant antibody responses directed to SARS-CoV-2 hotspot mutation sites and risk of immune escape. Front Immunol 2023; 13:1010105. [PMID: 36685521 PMCID: PMC9849925 DOI: 10.3389/fimmu.2022.1010105] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 12/13/2022] [Indexed: 01/07/2023] Open
Abstract
Introduction Considering the likely need for the development of novel effective vaccines adapted to emerging relevant CoV-2 variants, the increasing knowledge of epitope recognition profile among convalescents and afterwards vaccinated with identification of immunodominant regions may provide important information. Methods We used an RBD peptide microarray to identify IgG and IgA binding regions in serum of 71 COVID-19 convalescents and 18 vaccinated individuals. Results We found a set of immunodominant RBD antibody epitopes, each recognized by more than 30% of the tested cohort, that differ among the two different groups and are within conserved regions among betacoronavirus. Of those, only one peptide, P44 (S415-429), recognized by 68% of convalescents, presented IgG and IgA antibody reactivity that positively correlated with nAb titers, suggesting that this is a relevant RBD region and a potential target of IgG/IgA neutralizing activity. Discussion This peptide is localized within the area of contact with ACE-2 and harbors the mutation hotspot site K417 present in gamma (K417T), beta (K417N), and omicron (K417N) variants of concern. The epitope profile of vaccinated individuals differed from convalescents, with a more diverse repertoire of immunodominant peptides, recognized by more than 30% of the cohort. Noteworthy, immunodominant regions of recognition by vaccinated coincide with mutation sites at Omicron BA.1, an important variant emerging after massive vaccination. Together, our data show that immune pressure induced by dominant antibody responses may favor hotspot mutation sites and the selection of variants capable of evading humoral response.
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Affiliation(s)
- Jamille Ramos Oliveira
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Instituto de Investigação em Imunologia–Instituto Nacional de Ciências e Tecnologia – instituto de investigação em imunologia - Instituto Nacional de Ciências e Tecnologia (iii-INCT), São Paulo, Brazil
| | - Cesar Manuel Remuzgo Ruiz
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
| | | | - Jhosiene Yukari Magawa
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Instituto de Investigação em Imunologia–Instituto Nacional de Ciências e Tecnologia – instituto de investigação em imunologia - Instituto Nacional de Ciências e Tecnologia (iii-INCT), São Paulo, Brazil
| | - Isabela Pazotti Daher
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Instituto de Investigação em Imunologia–Instituto Nacional de Ciências e Tecnologia – instituto de investigação em imunologia - Instituto Nacional de Ciências e Tecnologia (iii-INCT), São Paulo, Brazil
| | - Alysson Henrique Urbanski
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Gabriela Justamante Händel Schmitz
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
| | - Helen Andrade Arcuri
- Centro de Estudos de Insetos Sociais, Departamento de Biologia, Instituto de Biociências de Rio Claro, Universidade Estadual Paulista, Rio Claro, SP, Brazil
| | - Marcelo Alves Ferreira
- Laboratório de Biologia Celular, Laboratório de Investigação Médica 59 (LIM59), Departamento de Patologia, Faculdade de Medicina Faculdade de Medicina da Universidade de São Paulo (FMUSP), Universidade de São Paulo, São Paulo, Brazil
| | - Greyce Luri Sasahara
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
| | - Giuliana Xavier de Medeiros
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Roberto Carlos Vieira Silva Júnior
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
| | - Edison Luiz Durigon
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
- Plataforma Científica Pasteur-USP, São Paulo, SP, Brazil
| | - Silvia Beatriz Boscardin
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Daniela Santoro Rosa
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo (UNIFESP/EPM, São Paulo, SP, Brazil
| | - Deborah Schechtman
- Departamento de Bioquímica, instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Helder I. Nakaya
- Plataforma Científica Pasteur-USP, São Paulo, SP, Brazil
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Edecio Cunha-Neto
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Instituto de Investigação em Imunologia–Instituto Nacional de Ciências e Tecnologia – instituto de investigação em imunologia - Instituto Nacional de Ciências e Tecnologia (iii-INCT), São Paulo, Brazil
| | - Gabriele Gadermaier
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Brazil
| | - Jorge Kalil
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Instituto de Investigação em Imunologia–Instituto Nacional de Ciências e Tecnologia – instituto de investigação em imunologia - Instituto Nacional de Ciências e Tecnologia (iii-INCT), São Paulo, Brazil
| | - Verônica Coelho
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Instituto de Investigação em Imunologia–Instituto Nacional de Ciências e Tecnologia – instituto de investigação em imunologia - Instituto Nacional de Ciências e Tecnologia (iii-INCT), São Paulo, Brazil
| | - Keity Souza Santos
- Departamento de Clínica Médica, Disciplina de Alergia e Imunologia Clínica, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
- Laboratório de Imunologia, LIM19, Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, (HCFMUSP) São Paulo da Universidade de São Paulo, São Paulo, Brazil
- Instituto de Investigação em Imunologia–Instituto Nacional de Ciências e Tecnologia – instituto de investigação em imunologia - Instituto Nacional de Ciências e Tecnologia (iii-INCT), São Paulo, Brazil
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Silva SJRD, Kohl A, Pena L, Pardee K. Recent insights into SARS-CoV-2 omicron variant. Rev Med Virol 2023; 33:e2373. [PMID: 35662313 PMCID: PMC9347414 DOI: 10.1002/rmv.2373] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/25/2022] [Accepted: 05/18/2022] [Indexed: 01/28/2023]
Abstract
The SARS-CoV-2 omicron variant (B.1.1.529) was first identified in Botswana and South Africa, and its emergence has been associated with a steep increase in the number of SARS-CoV-2 infections. The omicron variant has subsequently spread very rapidly across the world, resulting in the World Health Organization classification as a variant of concern on 26 November 2021. Since its emergence, great efforts have been made by research groups around the world that have rapidly responded to fill our gaps in knowledge for this novel variant. A growing body of data has demonstrated that the omicron variant shows high transmissibility, robust binding to human angiotensin-converting enzyme 2 receptor, attenuated viral replication, and causes less severe disease in COVID-19 patients. Further, the variant has high environmental stability, high resistance against most therapeutic antibodies, and partial escape neutralisation by antibodies from convalescent patients or vaccinated individuals. With the pandemic ongoing, there is a need for the distillation of literature from primary research into an accessible format for the community. In this review, we summarise the key discoveries related to the SARS-CoV-2 omicron variant, highlighting the gaps in knowledge that guide the field's ongoing and future work.
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Affiliation(s)
- Severino Jefferson Ribeiro da Silva
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada.,Department of Virology, Laboratory of Virology and Experimental Therapy (LAVITE), Aggeu Magalhães Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife, Pernambuco, Brazil
| | - Alain Kohl
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Lindomar Pena
- Department of Virology, Laboratory of Virology and Experimental Therapy (LAVITE), Aggeu Magalhães Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife, Pernambuco, Brazil
| | - Keith Pardee
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada.,Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada
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30
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Liu WD, Wang JT, Chao TL, Ieong SM, Tsai YM, Kuo PH, Tsai MJ, Chen YJ, Li GC, Ho SY, Chen HH, Huang YS, Hung CC, Chen YC, Chang SY, Chang SC. Evolution of neutralizing antibodies and cross-activity against different variants of SARS-CoV-2 in patients recovering from COVID-19. J Formos Med Assoc 2022:S0929-6646(22)00436-3. [PMID: 36496300 PMCID: PMC9705194 DOI: 10.1016/j.jfma.2022.11.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Patients recovering from COVID-19 may need vaccination against SARS-CoV-2 because acquired immunity from primary infection may wane, given the emergence of new SARS-CoV-2 variants. Understanding the trends of anti-spike IgG and neutralizing antibody titers in patients recovering from COVID-19 may inform the decision made on the appropriate interval between recovery and vaccination. METHODS Participants aged 20 years or older and diagnosed with COVID-19 between January and December, 2020 were enrolled. Serum specimens were collected every three months from 10 days to 12 months after the onset of symptom for determinations of anti-spike IgG and neutralizing antibody titers against SARS-CoV-2 Wuhan strain with D614G mutation, alpha, gamma and delta variants. RESULTS Of 19 participants, we found a decreasing trend of geometric mean titers of anti-spike IgG from 560.9 to 217 and 92 BAU/mL after a 4-month and a 7-month follow-up, respectively. The anti-spike IgG titers declined more quickly in the ten participants with severe or critical disease than the nine participants with only mild to moderate disease between one month and seven months after SARS-CoV-2 infection (-8.49 vs - 2.34-fold, p < 0.001). The neutralizing activity of the convalescent serum specimens collected from participants recovering from wild-type SARS-CoV-2 infection against different variants was lower, especially against the delta variants (p < 0.01 for each variant with Wuhan strain as reference). CONCLUSION Acquired immunity from primary infection with SARS-CoV-2 waned within 4-7 months in COVID-19 patients, and neutralizing cross-activities against different SARS-CoV-2 variants were lower compared with those against wild-type strain.
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Affiliation(s)
- Wang-Da Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan,Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Jann-Tay Wang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan,Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan,Corresponding author. Department of Internal Medicine, National Taiwan University Hospital, 7 Chung-Shan South Rd., Taipei City 10002, Taiwan
| | - Tai-Ling Chao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Si-Man Ieong
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ya-Min Tsai
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Po-Hsien Kuo
- Department of Internal Medicine, National Taiwan University Hospital Biomedical Park Hospital, Hsinchu, Taiwan
| | - Ming-Jui Tsai
- Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan
| | - Yi-Jie Chen
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Guei-Chi Li
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shu-Yuan Ho
- Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hui-Hou Chen
- Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Shan Huang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chien-Ching Hung
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan,Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan,Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yee-Chun Chen
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan,Center of Infection Control, National Taiwan University Hospital, Taipei, Taiwan
| | - Sui-Yuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan,Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan,Corresponding author. Department of Laboratory Medicine, National Taiwan University Hospital, 7 Chung-Shan South Rd., Taipei City 10002, Taiwan
| | - Shan-Chwen Chang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan,School of Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
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31
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Chao CH, Cheng D, Huang SW, Chuang YC, Yeh TM, Wang JR. Serological responses triggered by different SARS-CoV-2 vaccines against SARS-CoV-2 variants in Taiwan. Front Immunol 2022; 13:1023943. [PMID: 36458016 PMCID: PMC9705976 DOI: 10.3389/fimmu.2022.1023943] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 10/31/2022] [Indexed: 09/05/2023] Open
Abstract
Broadly neutralizing ability is critical for developing the next-generation SARS-CoV-2 vaccine. We collected sera samples between December 2021-January 2022 from 113 Taiwan naïve participants after their second dose of homologous vaccine (AZD1222, mRNA-1273, BNT162-b2, and MVC-COV1901) and compared the differences in serological responses of various SARS-CoV-2 vaccines. Compared to AZD1222, the two mRNA vaccines could elicit a higher level of anti-S1-RBD binding antibodies with higher broadly neutralizing ability evaluated using pseudoviruses of various SARS-CoV-2 lineages. The antigenic maps produced from the neutralization data implied that Omicron represents very different antigenic characteristics from the ancestral lineage. These results suggested that constantly administering the vaccine with ancestral Wuhan spike is insufficient for the Omicron outbreak. In addition, we found that anti-ACE2 autoantibodies were significantly increased in all four vaccinated groups compared to the unvaccinated pre-pandemic group, which needed to be investigated in the future.
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Affiliation(s)
- Chiao-Hsuan Chao
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Dayna Cheng
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sheng-Wen Huang
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Tainan, Taiwan
| | | | - Trai-Ming Yeh
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan
| | - Jen-Ren Wang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Tainan, Taiwan
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32
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Davis SK, Selva KJ, Lopez E, Haycroft ER, Lee WS, Wheatley AK, Juno JA, Adair A, Pymm P, Redmond SJ, Gherardin NA, Godfrey DI, Tham W, Kent SJ, Chung AW. Heterologous SARS-CoV-2 IgA neutralising antibody responses in convalescent plasma. Clin Transl Immunology 2022; 11:e1424. [PMID: 36299410 PMCID: PMC9588388 DOI: 10.1002/cti2.1424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 07/21/2022] [Accepted: 09/28/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Following infection with SARS-CoV-2, virus-specific antibodies are generated, which can both neutralise virions and clear infection via Fc effector functions. The importance of IgG antibodies for protection and control of SARS-CoV-2 has been extensively reported. By comparison, other antibody isotypes including IgA have been poorly characterised. METHODS Here, we characterised plasma IgA from 41 early convalescent COVID-19 subjects for neutralisation and Fc effector functions. RESULTS Convalescent plasma IgA from > 60% of the cohort had the capacity to inhibit the interaction between wild-type RBD and ACE2. Furthermore, a third of the cohort induced stronger IgA-mediated ACE2 inhibition than matched IgG when tested at equivalent concentrations. Plasma IgA and IgG from this cohort broadly recognised similar RBD epitopes and had similar capacities to inhibit ACE2 from binding to 22 of the 23 prevalent RBD mutations assessed. However, plasma IgA was largely incapable of mediating antibody-dependent phagocytosis in comparison with plasma IgG. CONCLUSION Overall, convalescent plasma IgA contributed to the neutralising antibody response of wild-type SARS-CoV-2 RBD and various RBD mutations. However, this response displayed large heterogeneity and was less potent than IgG.
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Affiliation(s)
- Samantha K Davis
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Kevin John Selva
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Ester Lopez
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Ebene R Haycroft
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Wen Shi Lee
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia,The Walter and Eliza Hall Institute of Medical ResearchMelbourneVICAustralia
| | - Adam K Wheatley
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Jennifer A Juno
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Amy Adair
- The Walter and Eliza Hall Institute of Medical ResearchMelbourneVICAustralia
| | - Phillip Pymm
- The Walter and Eliza Hall Institute of Medical ResearchMelbourneVICAustralia
| | - Samuel J Redmond
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Nicholas A Gherardin
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Dale I Godfrey
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
| | - Wai‐Hong Tham
- The Walter and Eliza Hall Institute of Medical ResearchMelbourneVICAustralia
| | - Stephen J Kent
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia,Melbourne Sexual Health Centre and Department of Infectious DiseasesAlfred Hospital and Central Clinical SchoolMonash UniversityMelbourneVICAustralia
| | - Amy W Chung
- Department of Microbiology and ImmunologyThe Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneMelbourneVICAustralia
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33
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Graham C, Lechmere T, Rehman A, Seow J, Kurshan A, Huettner I, Maguire TJA, Tam JCH, Cox D, Ward C, Racz M, Waters A, Mant C, Malim MH, Fox J, Doores KJ. The effect of Omicron breakthrough infection and extended BNT162b2 booster dosing on neutralization breadth against SARS-CoV-2 variants of concern. PLoS Pathog 2022; 18:e1010882. [PMID: 36191037 DOI: 10.1371/journal.ppat.1010882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/13/2022] [Accepted: 09/15/2022] [Indexed: 11/06/2022] Open
Abstract
COVID-19 vaccines are playing a vital role in controlling the COVID-19 pandemic. As SARS-CoV-2 variants encoding mutations in the surface glycoprotein, Spike, continue to emerge, there is increased need to identify immunogens and vaccination regimens that provide the broadest and most durable immune responses. We compared the magnitude and breadth of the neutralizing antibody response, as well as levels of Spike-reactive memory B cells, in individuals receiving a second dose of BNT162b2 at a short (3–4 week) or extended interval (8–12 weeks) and following a third vaccination approximately 6–8 months later. We show that whilst an extended interval between the first two vaccinations can greatly increase the breadth of the immune response and generate a higher proportion of Spike reactive memory B cells, a third vaccination leads to similar levels between the two groups. Furthermore, we show that the third vaccine dose enhances neutralization activity against omicron lineage members BA.1, BA.2 and BA.4/BA.5 and this is further increased following breakthrough infection during the UK omicron wave. These findings are relevant for vaccination strategies in populations where COVID-19 vaccine coverage remains low. COVID-19 vaccines have been vital in controlling the current pandemic. With the emergence of SARS-CoV-2 viral variants, it is important to understand factors that influence the neutralization breadth of vaccine responses. Here we study the impact of the interval between the 1st and 2nd BNT162b2 vaccine dose on neutralization breadth and how this is further affected by vaccine boosters and breakthrough infections.
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Elliott T, Cheeseman HM, Evans AB, Day S, McFarlane LR, O’Hara J, Kalyan M, Amini F, Cole T, Winston A, Fidler S, Pollock KM, Harker JA, Shattock RJ. Enhanced immune responses following heterologous vaccination with self-amplifying RNA and mRNA COVID-19 vaccines. PLoS Pathog 2022; 18:e1010885. [PMID: 36194628 PMCID: PMC9565686 DOI: 10.1371/journal.ppat.1010885] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/14/2022] [Accepted: 09/14/2022] [Indexed: 11/06/2022] Open
Abstract
The optimal vaccination strategy to boost responses in the context of pre-existing immune memory to the SARS-CoV-2 spike (S) glycoprotein is an important question for global public health. To address this, we explored the SARS-CoV-2-specific humoral and cellular immune responses to a novel self-amplifying RNA (saRNA) vaccine followed by a UK authorised mRNA vaccine (BNT162b2) in individuals with and without previous COVID-19, and compared these responses with those who received an authorised vaccine alone. 35 subjects receiving saRNA (saRNA group) as part of the COVAC1 clinical trial and an additional 40 participants receiving an authorised SARS-CoV-2 vaccine only (non-saRNA group) were recruited. Antibody responses were measured by ELISA and a pseudoneutralisation assay for wildtype, Delta and Omicron variants. Cellular responses were measured by IFN-ƴ ELISpot and an activation induced marker (AIM) assay. Approximately 50% in each group had previous COVID-19 prior to vaccination, confirmed by PCR or antibody positivity on ELISA. All of those who received saRNA subsequently received a full course of an authorised vaccine. The majority (83%) of those receiving saRNA who were COVID-19 naïve at baseline seroconverted following the second dose, and those with previous COVID-19 had an increase in antibody titres two weeks following saRNA vaccination (median 27-fold), however titres were lower when compared to mRNA vaccination. Two weeks following the 2nd authorised mRNA vaccine dose, binding and neutralising antibody titres were significantly higher in the saRNA participants with previous COVID-19, compared to non-saRNA, or COVID-19 naive saRNA participants. Cellular responses were again highest in this group, with a higher proportion of spike specific CD8+ than CD4+ T cells when compared to those receiving the mRNA vaccine only. These findings suggest an immunological benefit of increased antigen exposure, both from natural infection and vaccination, particularly evident in those receiving heterologous vaccination with saRNA and mRNA.
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Affiliation(s)
- Tamara Elliott
- Department of Infectious Disease, Imperial College London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
- Imperial College NIHR BRC, London, United Kingdom
| | | | - Abbey B. Evans
- Department of Infectious Disease, Imperial College London, United Kingdom
| | - Suzanne Day
- Department of Infectious Disease, Imperial College London, United Kingdom
| | - Leon R. McFarlane
- Department of Infectious Disease, Imperial College London, United Kingdom
| | - Jessica O’Hara
- Department of Infectious Disease, Imperial College London, United Kingdom
| | - Mohini Kalyan
- Department of Infectious Disease, Imperial College London, United Kingdom
| | - Fahimah Amini
- Department of Infectious Disease, Imperial College London, United Kingdom
| | - Tom Cole
- Department of Infectious Disease, Imperial College London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Alan Winston
- Department of Infectious Disease, Imperial College London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Sarah Fidler
- Department of Infectious Disease, Imperial College London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
- Imperial College NIHR BRC, London, United Kingdom
| | - Katrina M. Pollock
- Department of Infectious Disease, Imperial College London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
| | | | - Robin J. Shattock
- Department of Infectious Disease, Imperial College London, United Kingdom
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Collins E, Galipeau Y, Arnold C, Bosveld C, Heiskanen A, Keeshan A, Nakka K, Shir-Mohammadi K, St-Denis-Bissonnette F, Tamblyn L, Vranjkovic A, Wood LC, Booth R, Buchan CA, Crawley AM, Little J, McGuinty M, Saginur R, Langlois MA, Cooper CL. Cohort profile: Stop the Spread Ottawa (SSO) -a community-based prospective cohort study on antibody responses, antibody neutralisation efficiency and cellular immunity to SARS-CoV-2 infection and vaccination. BMJ Open 2022; 12:e062187. [PMID: 36691221 PMCID: PMC9461086 DOI: 10.1136/bmjopen-2022-062187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/16/2022] [Indexed: 01/27/2023] Open
Abstract
PURPOSE To investigate the robustness and longevity of SARS-CoV-2 immune responses conferred by natural infection and vaccination among priority populations such as immunocompromised individuals and people with post-acute sequelae of COVID-19 in a prospective cohort study (Stop the Spread Ottawa-SSO) in adults living in the Ottawa region. In this paper, we describe the study design, ongoing data collection and baseline characteristics of participants. PARTICIPANTS Since October 2020, participants who tested positive for COVID-19 (convalescents) or at high risk of exposure to the virus (under surveillance) have provided monthly blood and saliva samples over a 10-month period. As of 2 November 2021, 1026 adults had completed the baseline survey and 976 had attended baseline bloodwork. 300 participants will continue to provide bimonthly blood samples for 24 additional months (ie, total follow-up of 34 months). FINDINGS TO DATE The median age of the baseline sample was 44 (IQR 23, range: 18-79) and just over two-thirds (n=688; 67.1%) were female. 255 participants (24.9%) had a history of COVID-19 infection confirmed by PCR and/or serology. Over 600 participants (60.0%) work in high-risk occupations (eg, healthcare, teaching and transportation). 108 participants (10.5%) reported immunocompromising conditions or treatments at baseline (eg, cancer, HIV, other immune deficiency, and/or use of immunosuppressants). FUTURE PLANS SSO continues to yield rich research potential, given the collection of pre-vaccine baseline data and samples from the majority of participants, recruitment of diverse subgroups of interest, and a high level of participant retention and compliance with monthly sampling. The 24-month study extension will maximise opportunities to track SARS-CoV-2 immunity and vaccine efficacy, detect and characterise emerging variants, and compare subgroup humoral and cellular response robustness and persistence.
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Affiliation(s)
- Erin Collins
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Yannick Galipeau
- Department of Biochemistry, Microbiology & Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Corey Arnold
- Department of Biochemistry, Microbiology & Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Cameron Bosveld
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Aliisa Heiskanen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Alexa Keeshan
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Kiran Nakka
- Department of Biochemistry, Microbiology & Immunology, University of Ottawa, Ottawa, Ontario, Canada
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Khatereh Shir-Mohammadi
- Department of Biochemistry, Microbiology & Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Laura Tamblyn
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Agatha Vranjkovic
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Leah C Wood
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Ronald Booth
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Immunology Section, Eastern Ontario Regional Laboratory Association (EORLA), Ottawa, Ontario, Canada
| | - C Arianne Buchan
- Division of Infectious Diseases, Department of Medicine, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Angela M Crawley
- Department of Biochemistry, Microbiology & Immunology, University of Ottawa, Ottawa, Ontario, Canada
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Coronavirus Variants Rapid Response Network (CoVaRR-Net), Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Centre for Infection, Immunity and Inflammation (CI3), University of Ottawa, Ottawa, Ontario, Canada
| | - Julian Little
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Coronavirus Variants Rapid Response Network (CoVaRR-Net), Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- The Knowledge Synthesis and Application Unit (KSAU), University of Ottawa, Ottawa, Ontario, Canada
| | - Michaeline McGuinty
- Division of Infectious Diseases, Department of Medicine, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Raphael Saginur
- Division of Infectious Diseases, Department of Medicine, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Health Science Network Research Ethics Board (OHSN-REB), Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Marc-André Langlois
- Department of Biochemistry, Microbiology & Immunology, University of Ottawa, Ottawa, Ontario, Canada
- Coronavirus Variants Rapid Response Network (CoVaRR-Net), Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Centre for Infection, Immunity and Inflammation (CI3), University of Ottawa, Ottawa, Ontario, Canada
| | - Curtis L Cooper
- Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Division of Infectious Diseases, Department of Medicine, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Coronavirus Variants Rapid Response Network (CoVaRR-Net), Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Centre for Infection, Immunity and Inflammation (CI3), University of Ottawa, Ottawa, Ontario, Canada
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Chang CC, Vlad G, Vasilescu ER, Li P, Husain SA, Silvia EA, Cohen DJ, Ratner LE, Sun WZ, Mohan S, Suciu-Foca N. Previous SARS-CoV-2 infection or a third dose of vaccine elicited cross-variant neutralising antibodies in vaccinated solid-organ transplant recipients. Clin Transl Immunology 2022; 11:e1411. [PMID: 35979345 PMCID: PMC9371857 DOI: 10.1002/cti2.1411] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/24/2022] Open
Abstract
Objectives The SARS‐CoV‐2 pandemic poses a great threat to global health, particularly in solid organ transplant recipients (SOTRs). A 3‐dose mRNA vaccination protocol has been implemented for the majority of SOTRs, yet their immune responses are less effective compared to healthy controls (HCs). Methods We analyzed the humoral immune responses against the vaccine strain and variants of concern (VOC), including the highly mutated‐omicron variant in 113 SOTRs, of whom 44 had recovered from COVID‐19 (recovered‐SOTRs) and 69 had not contracted the virus (COVID‐naïve). In addition, 30 HCs, 8 of whom had recovered from COVID‐19, were also studied. Results Here, we report that three doses of the mRNA vaccine had only a modest effect in eliciting anti‐viral antibodies against all viral strains in the fully vaccinated COVID‐naive SOTRs (n = 47). Only 34.0% of this group of patients demonstrated both detectable anti‐RBD IgG with neutralization activities against alpha, beta, and delta variants, and only 8.5% of them showed additional omicron neutralizing capacities. In contrast, 79.5% of the recovered‐SOTRs who received two doses of vaccine demonstrated both higher anti‐RBD IgG levels and neutralizing activities against all VOC, including omicron. Conclusion These findings illustrate a significant impact of previous infection on the development of anti‐SARS‐CoV‐2 immune responses in vaccinated SOTRs and highlight the need for alternative strategies to protect a subset of a lesser‐vaccine responsive population.
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Affiliation(s)
- Chih-Chao Chang
- Department of Pathology and Cell Biology Columbia University Irving Medical Center New York NY USA
| | - George Vlad
- Department of Pathology and Cell Biology Columbia University Irving Medical Center New York NY USA
| | - Elena Rodica Vasilescu
- Department of Pathology and Cell Biology Columbia University Irving Medical Center New York NY USA
| | - Ping Li
- Department of Pathology and Cell Biology Columbia University Irving Medical Center New York NY USA
| | - Syed A Husain
- Division of Nephrology, Department of Medicine Columbia University Irving Medical Center New York NY USA.,The Columbia University Renal Epidemiology (CURE) Group New York NY USA
| | - Elaine A Silvia
- Department of Pathology and Cell Biology Columbia University Irving Medical Center New York NY USA
| | - David J Cohen
- Division of Nephrology, Department of Medicine Columbia University Irving Medical Center New York NY USA.,The Columbia University Renal Epidemiology (CURE) Group New York NY USA
| | - Lloyd E Ratner
- Department of Surgery Columbia University Irving Medical Center New York NY USA
| | - Wei-Zen Sun
- Department of Anesthesiology National Taiwan University Hospital Taipei Taiwan
| | - Sumit Mohan
- Division of Nephrology, Department of Medicine Columbia University Irving Medical Center New York NY USA.,The Columbia University Renal Epidemiology (CURE) Group New York NY USA
| | - Nicole Suciu-Foca
- Department of Pathology and Cell Biology Columbia University Irving Medical Center New York NY USA
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37
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Moyo-Gwete T, Madzivhandila M, Mkhize NN, Kgagudi P, Ayres F, Lambson BE, Manamela NP, Richardson SI, Makhado Z, van der Mescht MA, de Beer Z, de Villiers TR, Burgers WA, Ntusi NAB, Rossouw T, Ueckermann V, Boswell MT, Moore PL. Shared N417-Dependent Epitope on the SARS-CoV-2 Omicron, Beta, and Delta Plus Variants. J Virol 2022; 96:e0055822. [PMID: 35867572 PMCID: PMC9364786 DOI: 10.1128/jvi.00558-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/20/2022] [Indexed: 11/20/2022] Open
Abstract
As severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to evolve, several variants of concern (VOCs) have arisen which are defined by multiple mutations in their spike proteins. These VOCs have shown variable escape from antibody responses and have been shown to trigger qualitatively different antibody responses during infection. By studying plasma from individuals infected with either the original D614G, Beta, or Delta variants, we showed that the Beta and Delta variants elicit antibody responses that are overall more cross-reactive than those triggered by D614G. Patterns of cross-reactivity varied, and the Beta and Delta variants did not elicit cross-reactive responses to each other. However, Beta-elicited plasma was highly cross-reactive against Delta Plus (Delta+), which differs from Delta by a single K417N mutation in the receptor binding domain, suggesting that the plasma response targets the N417 residue. To probe this further, we isolated monoclonal antibodies from a Beta-infected individual with plasma responses against Beta, Delta+, and Omicron, which all possess the N417 residue. We isolated an N417-dependent antibody, 084-7D, which showed similar neutralization breadth to the plasma. The 084-7D MAb utilized the IGHV3-23*01 germ line gene and had somatic hypermutations similar to those of previously described public antibodies which target the 417 residue. Thus, we have identified a novel antibody which targets a shared epitope found on three distinct VOCs, enabling their cross-neutralization. Understanding antibodies targeting escape mutations, such as K417N, which repeatedly emerge through convergent evolution in SARS-CoV-2 variants, may aid in the development of next-generation antibody therapeutics and vaccines. IMPORTANCE The evolution of SARS-CoV-2 has resulted in variants of concern (VOCs) with distinct spike mutations conferring various immune escape profiles. These variable mutations also influence the cross-reactivity of the antibody response mounted by individuals infected with each of these variants. This study sought to understand the antibody responses elicited by different SARS-CoV-2 variants and to define shared epitopes. We show that Beta and Delta infections resulted in antibody responses that were more cross-reactive than the original D614G variant, but they had differing patterns of cross-reactivity. We further isolated an antibody from Beta infection which targeted the N417 site, enabling cross-neutralization of Beta, Delta+, and Omicron, all of which possess this residue. The discovery of antibodies which target escape mutations common to multiple variants highlights conserved epitopes to target in future vaccines and therapeutics.
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Affiliation(s)
- Thandeka Moyo-Gwete
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mashudu Madzivhandila
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Nonhlanhla N. Mkhize
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Prudence Kgagudi
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Frances Ayres
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Bronwen E. Lambson
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Nelia P. Manamela
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Simone I. Richardson
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Zanele Makhado
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mieke A. van der Mescht
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | | | | | - Wendy A. Burgers
- Institute of Infectious Disease and Molecular Medicine, Division of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Ntobeko A. B. Ntusi
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Theresa Rossouw
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Veronica Ueckermann
- Division for Infectious Diseases, Department of Internal Medicine, Steve Biko Academic Hospital and University of Pretoria, Pretoria, South Africa
| | - Michael T. Boswell
- Division for Infectious Diseases, Department of Internal Medicine, Steve Biko Academic Hospital and University of Pretoria, Pretoria, South Africa
| | - Penny L. Moore
- National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
- MRC Antibody Immunity Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Institute of Infectious Disease and Molecular Medicine, Division of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa
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38
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van Doremalen N, Schulz JE, Adney DR, Saturday TA, Fischer RJ, Yinda CK, Thakur N, Newman J, Ulaszewska M, Belij-Rammerstorfer S, Saturday G, Spencer AJ, Bailey D, Russell CA, Gilbert SC, Lambe T, Munster VJ. ChAdOx1 nCoV-19 (AZD1222) or nCoV-19-Beta (AZD2816) protect Syrian hamsters against Beta Delta and Omicron variants. Nat Commun 2022; 13:4610. [PMID: 35941149 DOI: 10.1038/s41467-022-32248-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 07/22/2022] [Indexed: 01/09/2023] Open
Abstract
ChAdOx1 nCoV-19 (AZD1222) is a replication-deficient simian adenovirus-vectored vaccine encoding the spike (S) protein of SARS-CoV-2, based on the first published full-length sequence (Wuhan-1). AZD1222 has been shown to have 74% vaccine efficacy against symptomatic disease in clinical trials. However, variants of concern (VoCs) have been detected, with substitutions that are associated with a reduction in virus neutralizing antibody titer. Updating vaccines to include S proteins of VoCs may be beneficial, even though current real-world data is suggesting good efficacy following boosting with vaccines encoding the ancestral S protein. Using the Syrian hamster model, we evaluate the effect of a single dose of AZD2816, encoding the S protein of the Beta VoC, and efficacy of AZD1222/AZD2816 as a heterologous primary series against challenge with the Beta or Delta variant. Minimal to no viral sgRNA could be detected in lungs of vaccinated animals obtained at 3- or 5- days post inoculation, in contrast to lungs of control animals. In Omicron-challenged hamsters, a single dose of AZD2816 or AZD1222 reduced virus shedding. Thus, these vaccination regimens are protective against the Beta, Delta, and Omicron VoCs in the hamster model.
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39
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Lu B, Zhu K, Cui X, Yao L, Wang X, Wang G, Duan L, Qian A, Ma M. Antibody and T-cellular response to COVID-19 booster vaccine in SARS-CoV-1 survivors. Clin Immunol 2022. [PMID: 36049602 PMCID: PMC9423872 DOI: 10.1016/j.clim.2022.109103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 08/22/2022] [Indexed: 11/23/2022]
Abstract
The severe acute respiratory syndrome coronavirus 1 (SARS-CoV-1) survivors are more likely to produce a potent immune response to SARS-CoV-2 after booster vaccination. We assessed humoral and T cell responses against SARS-CoV-2 in previously vaccinated SARS-CoV-1 survivors and naïve healthy individuals (NHIs) after a booster Ad5-nCoV dose. Boosted SARS-CoV-1 survivors had a high neutralization of SARS-CoV-2 Wuhan-Hu-1 (WA1), Beta, and Delta but is limited to Omicron subvariants (BA.1, BA.2, BA.2.12.1, and BA.4/BA.5). Most boosted SARS-CoV-1 survivors had robust SARS-CoV-2-specific CD4+ and CD8+ T cell responses. While booster vaccination in NHIs elicited less or ineffective neutralization of WA1, Beta, and Delta, and none of them induced neutralizing antibodies against Omicron subvariants. However, they developed comparable SARS-CoV-2-specific T cell responses compared to boosted SARS-CoV-1 survivors. These findings suggest that boosted Ad5-nCoV would not elicit effective neutralizing antibodies against Omicron subvariants in SARS-CoV-1 survivors and NHIs but induced comparable robust T cell responses. Achieving a high antibody titer in SARS-CoV-1 survivors and NHIs is desirable to generate broad neutralization.
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40
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Gracheva AV, Korchevaya ER, Ammour YI, Smirnova DI, Sokolova OS, Glukhov GS, Moiseenko AV, Zubarev IV, Samoilikov RV, Leneva IA, Svitich OA, Zverev VV, Faizuloev EB. Immunogenic properties of SARS-CoV-2 inactivated by ultraviolet light. Arch Virol 2022; 167:2181-2191. [PMID: 35857146 PMCID: PMC9296761 DOI: 10.1007/s00705-022-05530-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/25/2022] [Indexed: 11/23/2022]
Abstract
Vaccination against COVID-19 is the most effective method of controlling the spread of SARS-CoV-2 and reducing mortality from this disease. The development of vaccines with high protective activity against a wide range of SARS-CoV-2 antigenic variants remains relevant. In this regard, evaluation of the effectiveness of physical methods of virus inactivation, such as ultraviolet irradiation (UV) of the virus stock, remains relevant. This study demonstrates that the UV treatment of SARS-CoV-2 completely inactivates its infectivity while preserving its morphology, antigenic properties, and ability to induce the production of virus-neutralizing antibodies in mice through immunization. Thus, the UV inactivation of SARS-CoV-2 makes it possible to obtain viral material similar in its antigenic and immunogenic properties to the native antigen, which can be used both for the development of diagnostic test systems and for the development of an inactivated vaccine against COVID-19.
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Affiliation(s)
- A V Gracheva
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - E R Korchevaya
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - Yu I Ammour
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - D I Smirnova
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - O S Sokolova
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - G S Glukhov
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - A V Moiseenko
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia.,N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, 119991, Russia
| | - I V Zubarev
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - R V Samoilikov
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - I A Leneva
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia
| | - O A Svitich
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia.,F.F. Erisman Institute of Public Health, I.M. Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - V V Zverev
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia.,F.F. Erisman Institute of Public Health, I.M. Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - Evgeny B Faizuloev
- I.I. Mechnikov Research Institute of Vaccines and Sera, Moscow, 105064, Russia.
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41
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da Silva ES, Kohnen M, Gilson G, Staub T, Arendt V, Hilger C, Servais JY, Charpentier E, Domingues O, Snoeck CJ, Ollert M, Seguin-Devaux C, Perez-Bercoff D. Pre-Omicron Vaccine Breakthrough Infection Induces Superior Cross-Neutralization against SARS-CoV-2 Omicron BA.1 Compared to Infection Alone. Int J Mol Sci 2022; 23:7675. [PMID: 35887023 PMCID: PMC9320437 DOI: 10.3390/ijms23147675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/08/2022] [Accepted: 07/09/2022] [Indexed: 02/05/2023] Open
Abstract
SARS-CoV-2 variants raise concern because of their high transmissibility and their ability to evade neutralizing antibodies elicited by prior infection or by vaccination. Here, we compared the neutralizing abilities of sera from 70 unvaccinated COVID-19 patients infected before the emergence of variants of concern (VOCs) and of 16 vaccine breakthrough infection (BTI) cases infected with Gamma or Delta against the ancestral B.1 strain, the Gamma, Delta and Omicron BA.1 VOCs using live virus. We further determined antibody levels against the Nucleocapsid (N) and full Spike proteins, the receptor-binding domain (RBD) and the N-terminal domain (NTD) of the Spike protein. Convalescent sera featured considerable variability in the neutralization of B.1 and in the cross-neutralization of different strains. Their neutralizing capacity moderately correlated with antibody levels against the Spike protein and the RBD. All but one convalescent serum failed to neutralize Omicron BA.1. Overall, convalescent sera from patients with moderate disease had higher antibody levels and displayed a higher neutralizing ability against all strains than patients with mild or severe forms of the disease. The sera from BTI cases fell into one of two categories: half the sera had a high neutralizing activity against the ancestral B.1 strain as well as against the infecting strain, while the other half had no or a very low neutralizing activity against all strains. Although antibody levels against the spike protein and the RBD were lower in BTI sera than in unvaccinated convalescent sera, most neutralizing sera also retained partial neutralizing activity against Omicron BA.1, suggestive of a better cross-neutralization and higher affinity of vaccine-elicited antibodies over virus-induced antibodies. Accordingly, the IC50: antibody level ratios were comparable for BTI and convalescent sera, but remained lower in the neutralizing convalescent sera from patients with moderate disease than in BTI sera. The neutralizing activity of BTI sera was strongly correlated with antibodies against the Spike protein and the RBD. Together, these findings highlight qualitative differences in antibody responses elicited by infection in vaccinated and unvaccinated individuals. They further indicate that breakthrough infection with a pre-Omicron variant boosts immunity and induces cross-neutralizing antibodies against different strains, including Omicron BA.1.
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Affiliation(s)
- Eveline Santos da Silva
- HIV Clinical and Translational Research Unit, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.S.d.S.); (J.-Y.S.); (C.S.-D.)
| | - Michel Kohnen
- Centre Hospitalier de Luxembourg, 4 rue Ernest Barblé, L-1210 Luxembourg, Luxembourg; (M.K.); (G.G.); (T.S.); (V.A.)
| | - Georges Gilson
- Centre Hospitalier de Luxembourg, 4 rue Ernest Barblé, L-1210 Luxembourg, Luxembourg; (M.K.); (G.G.); (T.S.); (V.A.)
| | - Therese Staub
- Centre Hospitalier de Luxembourg, 4 rue Ernest Barblé, L-1210 Luxembourg, Luxembourg; (M.K.); (G.G.); (T.S.); (V.A.)
| | - Victor Arendt
- Centre Hospitalier de Luxembourg, 4 rue Ernest Barblé, L-1210 Luxembourg, Luxembourg; (M.K.); (G.G.); (T.S.); (V.A.)
| | - Christiane Hilger
- Molecular and Translational Allergology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg;
| | - Jean-Yves Servais
- HIV Clinical and Translational Research Unit, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.S.d.S.); (J.-Y.S.); (C.S.-D.)
| | - Emilie Charpentier
- Clinical and Applied Virology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.C.); (C.J.S.)
| | - Olivia Domingues
- Allergy and Clinical Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (O.D.); (M.O.)
| | - Chantal J. Snoeck
- Clinical and Applied Virology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.C.); (C.J.S.)
| | - Markus Ollert
- Allergy and Clinical Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (O.D.); (M.O.)
| | - Carole Seguin-Devaux
- HIV Clinical and Translational Research Unit, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.S.d.S.); (J.-Y.S.); (C.S.-D.)
| | - Danielle Perez-Bercoff
- HIV Clinical and Translational Research Unit, Department of Infection and Immunity, Luxembourg Institute of Health, 29 rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; (E.S.d.S.); (J.-Y.S.); (C.S.-D.)
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42
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Polvere I, Parrella A, Zerillo L, Voccola S, Cardinale G, D'Andrea S, Madera JR, Stilo R, Vito P, Zotti T. Humoral Immune Response Diversity to Different COVID-19 Vaccines: Implications for the "Green Pass" Policy. Front Immunol 2022; 13:833085. [PMID: 35634315 PMCID: PMC9130843 DOI: 10.3389/fimmu.2022.833085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/31/2022] [Indexed: 12/05/2022] Open
Abstract
In the COVID-19 pandemic year 2021, several countries have implemented a vaccine certificate policy, the “Green Pass Policy” (GPP), to reduce virus spread and to allow safe relaxation of COVID-19 restrictions and reopening of social and economic activities. The rationale for the GPP is based on the assumption that vaccinated people should maintain a certain degree of immunity to SARS-CoV-2. Here we describe and compare, for the first time, the humoral immune response to mRNA-1273, BNT162b2, Ad26.COV2.S, and ChAdOx1 nCoV-19 vaccines in terms of antibody titer elicited, neutralizing activity, and epitope reactogenicity among 369 individuals aged 19 to 94 years. In parallel, we also considered the use of a rapid test for the determination of neutralizing antibodies as a tool to guide policymakers in defining booster vaccination strategies and eligibility for Green Pass. Our analysis demonstrates that the titer of antibodies directed towards the receptor-binding domain (RBD) of SARS-CoV-2 Spike is significantly associated with age and vaccine type. Moreover, natural COVID-19 infection combined with vaccination results, on average, in higher antibody titer and higher neutralizing activity as compared to fully vaccinated individuals without prior COVID-19. We also found that levels of anti-Spike RBD antibodies are not always strictly associated with the extent of inhibition of RBD-ACE2 binding, as we could observe different neutralizing activities in sera with similar anti-RBD concentrations. Finally, we evaluated the reactivity to four synthetic peptides derived from Spike protein on a randomly selected serum sample and observed that similar to SARS-CoV-2 infection, vaccination elicits a heterogeneous antibody response with qualitative individual features. On the basis of our results, the use of rapid devices to detect the presence of neutralizing antibodies, even on a large scale and repeatedly over time, appears helpful in determining the duration of the humoral protection elicited by vaccination. These aspects and their implications for the GPP are discussed.
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Affiliation(s)
- Immacolata Polvere
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | | | - Lucrezia Zerillo
- Department of Science and Technology, University of Sannio, Benevento, Italy.,Genus Biotech srls, University of Sannio, Benevento, Italy
| | - Serena Voccola
- Consorzio Sannio Tech, Apollosa, Italy.,Genus Biotech srls, University of Sannio, Benevento, Italy
| | - Gaetano Cardinale
- Consorzio Sannio Tech, Apollosa, Italy.,Tecno Bios srl, Apollosa, Italy
| | - Silvia D'Andrea
- Department of Science and Technology, University of Sannio, Benevento, Italy.,Genus Biotech srls, University of Sannio, Benevento, Italy
| | | | - Romania Stilo
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Pasquale Vito
- Department of Science and Technology, University of Sannio, Benevento, Italy.,Genus Biotech srls, University of Sannio, Benevento, Italy
| | - Tiziana Zotti
- Department of Science and Technology, University of Sannio, Benevento, Italy.,Genus Biotech srls, University of Sannio, Benevento, Italy
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43
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Greaney AJ, Eguia RT, Starr TN, Khan K, Franko N, Logue JK, Lord SM, Speake C, Chu HY, Sigal A, Bloom JD. The SARS-CoV-2 Delta variant induces an antibody response largely focused on class 1 and 2 antibody epitopes. PLoS Pathog 2022; 18:e1010592. [PMID: 35767821 PMCID: PMC9275729 DOI: 10.1371/journal.ppat.1010592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 07/12/2022] [Accepted: 05/15/2022] [Indexed: 12/23/2022] Open
Abstract
Exposure histories to SARS-CoV-2 variants and vaccinations will shape the specificity of antibody responses. To understand the specificity of Delta-elicited antibody immunity, we characterize the polyclonal antibody response elicited by primary or mRNA vaccine-breakthrough Delta infections. Both types of infection elicit a neutralizing antibody response focused heavily on the receptor-binding domain (RBD). We use deep mutational scanning to show that mutations to the RBD's class 1 and class 2 epitopes, including sites 417, 478, and 484-486 often reduce binding of these Delta-elicited antibodies. The anti-Delta antibody response is more similar to that elicited by early 2020 viruses than the Beta variant, with mutations to the class 1 and 2, but not class 3 epitopes, having the largest effects on polyclonal antibody binding. In addition, mutations to the class 1 epitope (e.g., K417N) tend to have larger effects on antibody binding and neutralization in the Delta spike than in the D614G spike, both for vaccine- and Delta-infection-elicited antibodies. These results help elucidate how the antigenic impacts of SARS-CoV-2 mutations depend on exposure history.
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Affiliation(s)
- Allison J. Greaney
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Genome Sciences & Medical Scientist Training Program, University of Washington, Seattle, Washington, United States of America
| | - Rachel T. Eguia
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Tyler N. Starr
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Howard Hughes Medical Institute, Chevy Chase, Maryland, United States of America
| | - Khadija Khan
- Africa Health Research Institute, Durban, South Africa
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu–Natal, Durban, South Africa
| | - Nicholas Franko
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
| | - Jennifer K. Logue
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
| | - Sandra M. Lord
- Center for Interventional Immunology, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States of America
| | - Cate Speake
- Center for Interventional Immunology, Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States of America
| | - Helen Y. Chu
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
| | - Alex Sigal
- Africa Health Research Institute, Durban, South Africa
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu–Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
- Max Planck Institute for Infection Biology, Berlin, Germany
| | - Jesse D. Bloom
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Howard Hughes Medical Institute, Chevy Chase, Maryland, United States of America
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44
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Mensah AA, Campbell H, Stowe J, Seghezzo G, Simmons R, Lacy J, Bukasa A, O'Boyle S, Ramsay ME, Brown K, Ladhani SN. Risk of SARS-CoV-2 reinfections in children: a prospective national surveillance study between January, 2020, and July, 2021, in England. The Lancet Child & Adolescent Health 2022; 6:384-392. [PMID: 35358491 PMCID: PMC8959472 DOI: 10.1016/s2352-4642(22)00059-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 01/28/2022] [Accepted: 02/04/2022] [Indexed: 12/15/2022]
Abstract
Background Reinfection after primary SARS-CoV-2 infection is uncommon in adults, but little is known about the risks, characteristics, severity, or outcomes of reinfection in children. We aimed to assess the risk of SARS-CoV-2 reinfection in children and compare this with the risk in adults, by analysis of national testing data for England. Methods In our prospective, national surveillance study to assess reinfection of SARS-CoV-2 in children in England, we used national SARS-CoV-2 testing data to estimate the risk of reinfection at least 90 days after primary infection from Jan 27, 2020, to July, 31, 2021, which encompassed the alpha (B.1.1.7) and delta (B.1.617.2) variant waves in England. Data from children up to age 16 years who met the criteria for reinfection were included. Disease severity was assessed by linking reinfection cases to national hospital admission data, intensive care admission, and death registration datasets. Findings Reinfection rates closely followed community infection rates, with a small peak during the alpha wave and a larger peak during the delta wave. In children aged 16 years and younger, 688 418 primary infections and 2343 reinfections were identified. The overall reinfection rate was 66·88 per 100 000 population, which was higher in adults (72·53 per 100 000) than children (21·53 per 100 000). The reinfection rate after primary infection was 0·68% overall, 0·73% in adults compared with 0·18% in children age younger than 5 years, 0·24% in those aged 5–11 years, and 0·49% in those aged 12–16 years. Of the 109 children admitted to hospital with reinfection, 78 (72%) had comorbidities. Hospital admission rates were similar for the first (64 [2·7%] of 2343) and second episode (57 [2·4%] of 2343) and intensive care admissions were rare (seven children for the first episode and four for reinfections). There were 44 deaths within 28 days after primary infection (0·01%) and none after reinfection. Interpretation The risk of SARS-CoV-2 reinfection is strongly related to exposure due to community infection rates, especially during the delta variant wave. Children had a lower risk of reinfection than did adults, but reinfections were not associated with more severe disease or fatal outcomes. Funding UK Health Security Agency.
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Affiliation(s)
- Anna A Mensah
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | - Helen Campbell
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK.
| | - Julia Stowe
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | | | - Ruth Simmons
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | - Joanne Lacy
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | - Antoaneta Bukasa
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | - Shennae O'Boyle
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | - Mary E Ramsay
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | - Kevin Brown
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
| | - Shamez N Ladhani
- Immunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK
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45
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Uddin S, Lu H, Khan A, Karim S, Zhou F. Comparing the Impact of Road Networks on COVID-19 Severity between Delta and Omicron Variants: A Study Based on Greater Sydney (Australia) Suburbs. Int J Environ Res Public Health 2022; 19. [PMID: 35682134 DOI: 10.3390/ijerph19116551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/09/2022] [Accepted: 05/25/2022] [Indexed: 12/01/2022]
Abstract
The Omicron and Delta variants of COVID-19 have recently become the most dominant virus strains worldwide. A recent study on the Delta variant found that a suburban road network provides a reliable proxy for human mobility to explore COVID-19 severity. This study first examines the impact of road networks on COVID-19 severity for the Omicron variant using the infection and road connections data from Greater Sydney, Australia. We then compare the findings of this study with a recent study that used the infection data of the Delta variant for the same region. In analysing the road network, we used four centrality measures (degree, closeness, betweenness and eigenvector) and the coreness measure. We developed two multiple linear regression models for Delta and Omicron variants using the same set of independent and dependent variables. Only eigenvector is a statistically significant predictor for COVID-19 severity for the Omicron variant. On the other hand, both degree and eigenvector are statistically significant predictors for the Delta variant, as found in a recent study considered for comparison. We further found a statistical difference (p < 0.05) between the R-squared values for these two multiple linear regression models. Our findings point to an important difference in the transmission nature of Delta and Omicron variants, which could provide practical insights into understanding their infectious nature and developing appropriate control strategies accordingly.
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46
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Seow J, Graham C, Hallett SR, Lechmere T, Maguire TJA, Huettner I, Cox D, Khan H, Pickering S, Roberts R, Waters A, Ward CC, Mant C, Pitcher MJ, Spencer J, Fox J, Malim MH, Doores KJ. ChAdOx1 nCoV-19 vaccine elicits monoclonal antibodies with cross-neutralizing activity against SARS-CoV-2 viral variants. Cell Rep 2022; 39:110757. [PMID: 35477023 PMCID: PMC9010245 DOI: 10.1016/j.celrep.2022.110757] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 03/14/2022] [Accepted: 04/06/2022] [Indexed: 11/29/2022] Open
Abstract
Although the antibody response to COVID-19 vaccination has been studied extensively at the polyclonal level using immune sera, little has been reported on the antibody response at the monoclonal level. Here, we isolate a panel of 44 anti-SARS-CoV-2 monoclonal antibodies (mAbs) from an individual who received two doses of the ChAdOx1 nCoV-19 (AZD1222) vaccine at a 12-week interval. We show that, despite a relatively low serum neutralization titer, Spike-reactive IgG+ B cells are still detectable 9 months post-boost. Furthermore, mAbs with potent neutralizing activity against the current SARS-CoV-2 variants of concern (Alpha, Gamma, Beta, Delta, and Omicron) are present. The vaccine-elicited neutralizing mAbs form eight distinct competition groups and bind epitopes overlapping with neutralizing mAbs elicited following SARS-CoV-2 infection. AZD1222-elicited mAbs are more mutated than mAbs isolated from convalescent donors 1-2 months post-infection. These findings provide molecular insights into the AZD1222 vaccine-elicited antibody response.
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Affiliation(s)
- Jeffrey Seow
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Carl Graham
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Sadie R Hallett
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Thomas Lechmere
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Thomas J A Maguire
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Isabella Huettner
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Daniel Cox
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Hataf Khan
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Suzanne Pickering
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | | | - Anele Waters
- Harrison Wing, Guy's and St Thomas' NHS Trust, London, UK
| | - Christopher C Ward
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Christine Mant
- Infectious Diseases Biobank, Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Michael J Pitcher
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Jo Spencer
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Julie Fox
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK; Harrison Wing, Guy's and St Thomas' NHS Trust, London, UK
| | - Michael H Malim
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Katie J Doores
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, London, UK.
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47
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Abdul-Jawad S, Beatson R, Lechmere T, Graham R, Alaguthurai T, Graham C, Vidler J, Kulasekararaj A, Patten PEM, Doores KJ, Irshad S. BNT162b2 COVID-19 and ChAdOx1 nCoV-19 vaccination in patients with myelodysplastic syndromes. Haematologica 2022; 107:1181-1184. [PMID: 35045695 PMCID: PMC9052909 DOI: 10.3324/haematol.2021.280337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/10/2022] [Indexed: 12/05/2022] Open
Affiliation(s)
- Sultan Abdul-Jawad
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King's College London, UK
| | - Richard Beatson
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King's College London, UK
| | - Thomas Lechmere
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, UK
| | - Rosalind Graham
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King's College London, UK
| | - Thanussuyah Alaguthurai
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King's College London, UK; Breast Cancer Now Research Unit, King's College London, London, UK
| | - Carl Graham
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, UK
| | - Jennifer Vidler
- Department of Haematological Medicine, King's College Hospital, London, UK
| | | | - Piers E M Patten
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King's College London, UK; Department of Haematological Medicine, King's College Hospital, London, UK
| | - Katie J Doores
- Department of Infectious Diseases, School of Immunology and Microbial Sciences, King's College London, UK
| | - Sheeba Irshad
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King's College London, UK; Breast Cancer Now Research Unit, King's College London, London, UK; Guy's and St Thomas' NHS Foundation Trust, London, UK; Cancer Research UK (CRUK) Clinician Scientist, London, UK.
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48
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Lechmere T, Snell LB, Graham C, Seow J, Shalim ZA, Charalampous T, Alcolea-Medina A, Batra R, Nebbia G, Edgeworth JD, Malim MH, Doores KJ. Broad Neutralization of SARS-CoV-2 Variants, Including Omicron, following Breakthrough Infection with Delta in COVID-19-Vaccinated Individuals. mBio 2022; 13:e0379821. [PMID: 35297676 PMCID: PMC9040729 DOI: 10.1128/mbio.03798-21] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/14/2022] [Indexed: 12/16/2022] Open
Abstract
Numerous studies have shown that a prior SARS-CoV-2 infection can greatly enhance the antibody response to COVID-19 vaccination, with this so called "hybrid immunity" leading to greater neutralization breadth against SARS-CoV-2 variants of concern. However, little is known about how breakthrough infection (BTI) in COVID-19-vaccinated individuals will impact the magnitude and breadth of the neutralizing antibody response. Here, we compared neutralizing antibody responses between unvaccinated and COVID-19-double-vaccinated individuals (including both AZD1222 and BNT162b2 vaccinees) who have been infected with the Delta (B.1.617.2) variant. Rapid production of spike-reactive IgG was observed in the vaccinated group, providing evidence of effective vaccine priming. Overall, potent cross-neutralizing activity against current SARS-CoV-2 variants of concern was observed in the BTI group compared to the infection group, including neutralization of the Omicron (B.1.1.529) variant. This study provides important insights into population immunity where transmission levels remain high and in the context of new or emerging variants of concern. IMPORTANCE COVID-19 vaccines have been vital in controlling SARS-CoV-2 infections and reducing hospitalizations. However, breakthrough SARS-CoV-2 infections (BTI) occur in some vaccinated individuals. Here, we study how BTI impacts on the potency and the breadth of the neutralizing antibody response. We show that a Delta infection in COVID-19-vaccinated individuals provides potent neutralization against the current SARS-CoV-2 variants of concern, including the Omicron variant.
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Affiliation(s)
- Thomas Lechmere
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, United Kingdom
| | - Luke B. Snell
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Carl Graham
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, United Kingdom
| | - Jeffrey Seow
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, United Kingdom
| | - Zayed A. Shalim
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, United Kingdom
| | - Themoula Charalampous
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Adela Alcolea-Medina
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Rahul Batra
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Gaia Nebbia
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Jonathan D. Edgeworth
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Michael H. Malim
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, United Kingdom
| | - Katie J. Doores
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King’s College London, London, United Kingdom
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49
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Kurahashi Y, Sutandhio S, Furukawa K, Tjan LH, Iwata S, Sano S, Tohma Y, Ohkita H, Nakamura S, Nishimura M, Arii J, Kiriu T, Yamamoto M, Nagano T, Nishimura Y, Mori Y. Cross-Neutralizing Breadth and Longevity Against SARS-CoV-2 Variants After Infections. Front Immunol 2022; 13:773652. [PMID: 35281007 PMCID: PMC8907139 DOI: 10.3389/fimmu.2022.773652] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 02/04/2022] [Indexed: 01/05/2023] Open
Abstract
Background Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is the virus responsible for the Coronavirus Disease 2019 (COVID-19) pandemic. The emergence of variants of concern (VOCs) has become one of the most pressing issues in public health. To control VOCs, it is important to know which COVID-19 convalescent sera have cross-neutralizing activity against VOCs and how long the sera maintain this protective activity. Methods Sera of patients infected with SARS-CoV-2 from March 2020 to January 2021 and admitted to Hyogo Prefectural Kakogawa Medical Center were selected. Blood was drawn from patients at 1-3, 3-6, and 6-8 months post onset. Then, a virus neutralization assay against SARS-CoV-2 variants (D614G mutation as conventional strain; B.1.1.7, P.1, and B.1.351 as VOCs) was performed using authentic viruses. Results We assessed 97 sera from 42 patients. Sera from 28 patients showed neutralizing activity that was sustained for 3-8 months post onset. The neutralizing antibody titer against D614G significantly decreased in sera of 6-8 months post onset compared to those of 1-3 months post onset. However, the neutralizing antibody titers against the three VOCs were not significantly different among 1-3, 3-6, and 6-8 months post onset. Discussion Our results indicate that neutralizing antibodies that recognize the common epitope for several variants may be maintained for a long time, while neutralizing antibodies having specific epitopes for a variant, produced in large quantities immediately after infection, may decrease quite rapidly.
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Affiliation(s)
- Yukiya Kurahashi
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Silvia Sutandhio
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Koichi Furukawa
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Lidya Handayani Tjan
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Sachiyo Iwata
- Division of Cardiovascular Medicine, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, Japan
| | - Shigeru Sano
- Acute Care Medical Center, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, Japan
| | - Yoshiki Tohma
- Acute Care Medical Center, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, Japan
| | - Hiroyuki Ohkita
- Division of General Internal Medicine, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, Japan
| | - Sachiko Nakamura
- Division of General Internal Medicine, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, Japan
| | - Mitsuhiro Nishimura
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Jun Arii
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tatsunori Kiriu
- Division of Respiratory Medicine, Hyogo Prefectural Awaji Medical Center, Sumoto, Japan
| | - Masatsugu Yamamoto
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tatsuya Nagano
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshihiro Nishimura
- Division of Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yasuko Mori
- Division of Clinical Virology, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Japan
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50
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Greaney AJ, Eguia RT, Starr TN, Khan K, Franko N, Logue JK, Lord SM, Speake C, Chu HY, Sigal A, Bloom JD. The SARS-CoV-2 Delta variant induces an antibody response largely focused on class 1 and 2 antibody epitopes. bioRxiv 2022:2022.03.12.484088. [PMID: 35313588 PMCID: PMC8936118 DOI: 10.1101/2022.03.12.484088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Exposure histories to SARS-CoV-2 variants and vaccinations will shape the specificity of antibody responses. To understand the specificity of Delta-elicited antibody immunity, we characterize the polyclonal antibody response elicited by primary or mRNA vaccine-breakthrough Delta infections. Both types of infection elicit a neutralizing antibody response focused heavily on the receptor-binding domain (RBD). We use deep mutational scanning to show that mutations to the RBD's class 1 and class 2 epitopes, including sites 417, 478, and 484-486 often reduce binding of these Delta-elicited antibodies. The anti-Delta antibody response is more similar to that elicited by early 2020 viruses than the Beta variant, with mutations to the class 1 and 2, but not class 3 epitopes, having the largest effects on polyclonal antibody binding. In addition, mutations to the class 1 epitope (e.g., K417N) tend to have larger effects on antibody binding and neutralization in the Delta spike than in the D614G spike, both for vaccine- and Delta-infection-elicited antibodies. These results help elucidate how the antigenic impacts of SARS-CoV-2 mutations depend on exposure history.
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Affiliation(s)
- Allison J. Greaney
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center; Seattle, WA, USA
- Department of Genome Sciences & Medical Scientist Training Program, University of Washington; Seattle, WA, USA
| | - Rachel T. Eguia
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center; Seattle, WA, USA
| | - Tyler N. Starr
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center; Seattle, WA, USA
- Howard Hughes Medical Institute; Chevy Chase, MD, USA
| | - Khadija Khan
- Africa Health Research Institute, Durban, South Africa
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu–Natal, Durban, South Africa
| | - Nicholas Franko
- Division of Allergy and Infectious Diseases, University of Washington; Seattle, WA, USA
| | - Jennifer K. Logue
- Division of Allergy and Infectious Diseases, University of Washington; Seattle, WA, USA
| | - Sandra M. Lord
- Center for Interventional Immunology, Benaroya Research Institute at Virginia Mason
| | - Cate Speake
- Center for Interventional Immunology, Benaroya Research Institute at Virginia Mason
| | - Helen Y. Chu
- Division of Allergy and Infectious Diseases, University of Washington; Seattle, WA, USA
| | - Alex Sigal
- Africa Health Research Institute, Durban, South Africa
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu–Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
- Max Planck Institute for Infection Biology, Berlin, Germany
| | - Jesse D. Bloom
- Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Research Center; Seattle, WA, USA
- Howard Hughes Medical Institute; Chevy Chase, MD, USA
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