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Wang X, Zhang Y, Huang C, Yang H, Jiang C, Yu X, Zhao R, Hong J, Zhang Y, Wang Y, Zhao R, An Z, Tong Z. Booster vaccines dose reduced mortality in hospitalized COVID-19 patients requiring oxygen supplementation: Evidence from the Beijing Omicron outbreak. Hum Vaccin Immunother 2024; 20:2361500. [PMID: 38904423 PMCID: PMC11195489 DOI: 10.1080/21645515.2024.2361500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Accepted: 05/26/2024] [Indexed: 06/22/2024] Open
Abstract
To assess the impact of vaccines on clinical outcomes among hospitalized COVID-19-infected patients requiring oxygen supplementation during the Beijing Omicron outbreak. We conducted a retrospective cohort study at Beijing Chaoyang Hospital, Capital Medical University, from November 15, 2022, to March 31, 2023. Vaccination statuses were categorized into 3 doses, 2 doses, and unvaccinated (0 dose). The primary outcome was 28-day all-cause mortality. Secondary outcomes included poor outcomes, intensive care unit admission, cardiovascular thromboembolism events, and hospital readmission. Among the included patients, 117 were 2 doses, 285 received booster doses, and 503 were unvaccinated. After propensity score inverse probability weighting, the 3 doses group showed a significantly lower 28-day all-cause mortality compared to the unvaccinated group (inverse probability of treatment weighting-adjusted HR: 0.64, 95% CI: 0.50-0.81). No significant difference was observed in all-cause mortality between the 2 doses and unvaccinated groups. No significant differences were observed in secondary outcome analyses when comparing the 3 doses or 2 doses group to the unvaccinated group. Subgroup analysis revealed significant benefits of booster vaccination in patients with shorter symptom duration, lower Charlson Comorbidity Index, and without immunosuppression status. Our study highlights the significant reduction in all-cause mortality among hospitalized Omicron-infected patients who received a third dose vaccine. These findings underscore the importance of prioritizing booster vaccinations, especially among the elderly. Further research is warranted to confirm and extend these observations.
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Affiliation(s)
- Xinrui Wang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yi Zhang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Chong Huang
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Hui Yang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Chunguo Jiang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xiaojia Yu
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Rui Zhao
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jun Hong
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Yi Zhang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yushu Wang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Rui Zhao
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhuoling An
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhaohui Tong
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Durier C, Ninove L, van der Werf S, Lefebvre M, Desaint C, Bauer R, Attia M, Lecompte AS, Lachatre M, Maakaroun-Vermesse Z, Nicolas JF, Verdon R, Kiladjian JJ, Loubet P, Schmidt-Mutter C, Corbin V, Ansart S, Melica G, Resch M, Netzer E, Kherabi Y, Tardieu R, Lelièvre JD, Tartour E, Meyer L, de Lamballerie X, Launay O. Incidence of COVID-19 mRNA vaccine symptomatic breakthrough infections during Omicron circulation in adults with or without infection prior to vaccination. Infect Dis Now 2024; 54:104886. [PMID: 38494117 DOI: 10.1016/j.idnow.2024.104886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 03/06/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVES COVID-19 vaccine breakthrough infections were frequently reported during circulation of the Omicron variant. The ANRS|MIE CoviCompareP study investigated these infections in adults vaccinated and boosted with BNT162b2 [Pfizer-BioNTech] and with/without SARS-CoV-2 infection before vaccination. METHODS In the first half of 2021, healthy adults (aged 18-45, 65-74 and 75 or older) received either one dose of BNT162b2 (n = 120) if they had a documented history of SARS-CoV-2 infection at least five months previously, or two doses (n = 147) if they had no history confirmed by negative serological tests. A first booster dose was administered at least 6 months after the primary vaccination, and a second booster dose, if any, was reported in the database. Neutralizing antibodies (NAbs) against the European (D614G) strain and the Omicron BA.1 variant were assessed up to 28 days after the first booster dose. A case-control analysis was performed for the 252 participants who were followed up in 2022, during the Omicron waves. RESULTS From January to October 2022, 78/252 (31%) had a documented symptomatic breakthrough infection after full vaccination: 21/117 (18%) in those who had been infected before vaccination vs. 57/135 (42%) in those who had not. In a multivariate logistic regression model, factors associated with a lower risk of breakthrough infection were older age, a higher number of booster doses, and higher levels of Omicron BA.1 NAb titers in adults with infection before vaccination, but not in those without prior infection. CONCLUSION Our results highlight the need to consider immune markers of protection in association with infection and vaccination history.
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Affiliation(s)
| | - Laetitia Ninove
- Unité des Virus Émergents (UVE), Aix Marseille Univ, IRD 190, INSERM 1207, Marseille, France
| | - Sylvie van der Werf
- Institut Pasteur, Université Paris Cité, UMR 3569 CNRS, Unité de Génétique Moléculaire des Virus à ARN, Centre National de Référence Virus des Infections Respiratoires, Paris, France
| | - Maeva Lefebvre
- Service de maladies infectieuses et tropicales, Centre de prévention des maladies infectieuses et transmissibles CHU de Nantes - CIC1413 Nantes, Nantes, France
| | - Corinne Desaint
- INSERM US19, Villejuif, France; INSERM CIC 1417 Cochin Pasteur, Assistance Publique Hôpitaux de Paris, Hôpital Cochin, Innovative Clinical Research Network in Vaccinology, Université de Paris, Sorbonne Paris Cité, Paris, France
| | | | - Mikael Attia
- Institut Pasteur, Université Paris Cité, UMR 3569 CNRS, Unité de Génétique Moléculaire des Virus à ARN, Centre National de Référence Virus des Infections Respiratoires, Paris, France
| | - Anne-Sophie Lecompte
- Service de maladies infectieuses et tropicales, Centre de prévention des maladies infectieuses et transmissibles CHU de Nantes - CIC1413 Nantes, Nantes, France
| | - Marie Lachatre
- INSERM CIC 1417 Cochin Pasteur, Assistance Publique Hôpitaux de Paris, Hôpital Cochin, Innovative Clinical Research Network in Vaccinology, Université de Paris, Sorbonne Paris Cité, Paris, France
| | - Zoha Maakaroun-Vermesse
- Centre de Vaccination CHU de Tours, Centre d'Investigation Clinique CIC 1415, INSERM, CHRU de Tours, Tours, France
| | - Jean-François Nicolas
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Université Claude Bernard Lyon I, Lyon, France; CHU Lyon-Sud, Pierre-Bénite, France
| | - Renaud Verdon
- Service de Maladies Infectieuses, CHU de Caen, Dynamicure INSERM, UMR 1311, Normandie Univ, UNICAEN, Caen, France
| | - Jean-Jacques Kiladjian
- AP-HP, Hôpital Saint-Louis, Centre d'Investigations Cliniques, INSERM, CIC1427, Université Paris Cité, Paris, France
| | - Paul Loubet
- VBMI, INSERM U1047, Department of Infectious and Tropical Diseases, Université de Montpellier, CHU Nîmes, Montpellier, France
| | | | - Violaine Corbin
- CHU Clermont-Ferrand, INSERM CIC1405, Clermont-Ferrand, France
| | | | - Giovanna Melica
- Service d'Immunologie Clinique et Maladies Infectieuses, APHP, Hôpital Henri Mondor, INSERM CIC 1430, Créteil, France
| | | | | | - Yousra Kherabi
- INSERM CIC 1417 Cochin Pasteur, Assistance Publique Hôpitaux de Paris, Hôpital Cochin, Innovative Clinical Research Network in Vaccinology, Université de Paris, Sorbonne Paris Cité, Paris, France
| | | | | | - Eric Tartour
- APHP, Hôpital Européen Georges Pompidou, INSERM U970, PARCC, Université de Paris, Paris, France
| | - Laurence Meyer
- INSERM US19, Villejuif, France; INSERM, CESP U1018, Université Paris Saclay, APHP, Le Kremlin-Bicêtre, France
| | - Xavier de Lamballerie
- Unité des Virus Émergents (UVE), Aix Marseille Univ, IRD 190, INSERM 1207, Marseille, France
| | - Odile Launay
- INSERM CIC 1417 Cochin Pasteur, Assistance Publique Hôpitaux de Paris, Hôpital Cochin, Innovative Clinical Research Network in Vaccinology, Université de Paris, Sorbonne Paris Cité, Paris, France
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Tarke A, Ramezani-Rad P, Alves Pereira Neto T, Lee Y, Silva-Moraes V, Goodwin B, Bloom N, Siddiqui L, Avalos L, Frazier A, Zhang Z, da Silva Antunes R, Dan J, Crotty S, Grifoni A, Sette A. SARS-CoV-2 breakthrough infections enhance T cell response magnitude, breadth, and epitope repertoire. Cell Rep Med 2024; 5:101583. [PMID: 38781962 PMCID: PMC11228552 DOI: 10.1016/j.xcrm.2024.101583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/22/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024]
Abstract
Little is known about the effect of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 or SARS2) vaccine breakthrough infections (BTIs) on the magnitude and breadth of the T cell repertoire after exposure to different variants. We studied samples from individuals who experienced symptomatic BTIs during Delta or Omicron waves. In the pre-BTI samples, 30% of the donors exhibited substantial immune memory against non-S (spike) SARS2 antigens, consistent with previous undiagnosed asymptomatic SARS2 infections. Following symptomatic BTI, we observed (1) enhanced S-specific CD4 and CD8 T cell responses in donors without previous asymptomatic infection, (2) expansion of CD4 and CD8 T cell responses to non-S targets (M, N, and nsps) independent of SARS2 variant, and (3) generation of novel epitopes recognizing variant-specific mutations. These variant-specific T cell responses accounted for 9%-15% of the total epitope repertoire. Overall, BTIs boost vaccine-induced immune responses by increasing the magnitude and by broadening the repertoire of T cell antigens and epitopes recognized.
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Affiliation(s)
- Alison Tarke
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Parham Ramezani-Rad
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | | | - Yeji Lee
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Vanessa Silva-Moraes
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA
| | - Benjamin Goodwin
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Nathaniel Bloom
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Leila Siddiqui
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Liliana Avalos
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - April Frazier
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Zeli Zhang
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | | | - Jennifer Dan
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA; Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA
| | - Shane Crotty
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA; Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA.
| | - Alba Grifoni
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA.
| | - Alessandro Sette
- Center for Vaccine Innovation, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA; Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA.
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Pourriyahi H, Hajizadeh N, Khosravi M, Pourriahi H, Soleimani S, Hosseini NS, Mohammad AP, Goodarzi A. New variants of COVID-19 (XBB.1.5 and XBB.1.16, the "Arcturus"): A review of highly questioned concerns, a brief comparison between different peaks in the COVID-19 pandemic, with a focused systematic review on expert recommendations for prevention, vaccination, and treatment measures in the general population and at-risk groups. Immun Inflamm Dis 2024; 12:e1323. [PMID: 38938013 PMCID: PMC11211615 DOI: 10.1002/iid3.1323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/11/2024] [Accepted: 06/07/2024] [Indexed: 06/29/2024] Open
Abstract
INTRODUCTION The COVID-19 pandemic has taken many forms and continues to evolve, now around the Omicron wave, raising concerns over the globe. With COVID-19 being declared no longer a "public health emergency of international concern (PHEIC)," the COVID pandemic is still far from over, as new Omicron subvariants of interest and concern have risen since January of 2023. Mainly with the XBB.1.5 and XBB.1.16 subvariants, the pandemic is still very much "alive" and "breathing." METHODS This review consists of five highly concerning questions about the current state of the COVID Omicron peak. We searched four main online databases to answer the first four questions. For the last one, we performed a systematic review of the literature, with keywords "Omicron," "Guidelines," and "Recommendations." RESULTS A total of 31 articles were included. The main symptoms of the current Omicron wave include a characteristically high fever, coughing, conjunctivitis (with itching eyes), sore throat, runny nose, congestion, fatigue, body ache, and headache. The median incubation period of the symptoms is shorter than the previous peaks. Vaccination against COVID can still be considered effective for the new subvariants. CONCLUSION Guidelines recommend continuation of personal protective measures, third and fourth dose boosters, along with administration of bivalent messenger RNA vaccine boosters. The consensus antiviral treatment is combination therapy using Nirmatrelvir and Ritonavir, and the consensus for pre-exposure prophylaxis is Tixagevimab and Cilgavimab combination. We hope the present paper raises awareness for the continuing presence of COVID and ways to lower the risks, especially for at-risk groups.
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Affiliation(s)
- Homa Pourriyahi
- Student Research Committee, School of MedicineIran University of Medical SciencesTehranIran
| | - Nima Hajizadeh
- School of MedicineIran University of Medical SciencesTehranIran
| | - Mina Khosravi
- School of MedicineIran University of Medical SciencesTehranIran
| | - Homayoun Pourriahi
- Student Research Committee, School of MedicineIran University of Medical SciencesTehranIran
| | - Sanaz Soleimani
- Student Research Committee, School of MedicineIran University of Medical SciencesTehranIran
- Rasool Akram Medical Complex Clinical Research Development Center (RCRDC), School of MedicineIran University of Medical SciencesTehranIran
| | | | | | - Azadeh Goodarzi
- Department of Dermatology, Rasool Akram Medical Complex Clinical Research Development Center (RCRDC), School of MedicineIran University of Medical SciencesTehranIran
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de Rioja VL, Basile L, Perramon-Malavez A, Martínez-Solanas É, López D, Medina Maestro S, Coma E, Fina F, Prats C, Mendioroz Peña J, Alvarez-Lacalle E. Severity of Omicron Subvariants and Vaccine Impact in Catalonia, Spain. Vaccines (Basel) 2024; 12:466. [PMID: 38793717 PMCID: PMC11125683 DOI: 10.3390/vaccines12050466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024] Open
Abstract
In the current COVID-19 landscape dominated by Omicron subvariants, understanding the timing and efficacy of vaccination against emergent lineages is crucial for planning future vaccination campaigns, yet detailed studies stratified by subvariant, vaccination timing, and age groups are scarce. This retrospective study analyzed COVID-19 cases from December 2021 to January 2023 in Catalonia, Spain, focusing on vulnerable populations affected by variants BA.1, BA.2, BA.5, and BQ.1 and including two national booster campaigns. Our database includes detailed information such as dates of diagnosis, hospitalization and death, last vaccination, and cause of death, among others. We evaluated the impact of vaccination on disease severity by age, variant, and vaccination status, finding that recent vaccination significantly mitigated severity across all Omicron subvariants, although efficacy waned six months post-vaccination, except for BQ.1, which showed more stable levels. Unvaccinated individuals had higher hospitalization and mortality rates. Our results highlight the importance of periodic vaccination to reduce severe outcomes, which are influenced by variant and vaccination timing. Although the seasonality of COVID-19 is uncertain, our analysis suggests the potential benefit of annual vaccination in populations >60 years old, probably in early fall, if COVID-19 eventually exhibits a major peak similar to other respiratory viruses.
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Affiliation(s)
- Víctor López de Rioja
- Department of Physics, Universitat Politècnica de Catalunya, Castelldefels, 08860 Barcelona, Spain; (A.P.-M.); (C.P.); (E.A.-L.)
| | - Luca Basile
- Public Health Agency of Catalonia, Department of Health, 08005 Barcelona, Spain; (L.B.); (S.M.M.); (J.M.P.)
| | - Aida Perramon-Malavez
- Department of Physics, Universitat Politècnica de Catalunya, Castelldefels, 08860 Barcelona, Spain; (A.P.-M.); (C.P.); (E.A.-L.)
| | | | - Daniel López
- Department of Physics, Universitat Politècnica de Catalunya, Castelldefels, 08860 Barcelona, Spain; (A.P.-M.); (C.P.); (E.A.-L.)
| | - Sergio Medina Maestro
- Public Health Agency of Catalonia, Department of Health, 08005 Barcelona, Spain; (L.B.); (S.M.M.); (J.M.P.)
| | - Ermengol Coma
- Primary Care Services Information System (SISAP), Institut Català de la Salut, 08007 Barcelona, Spain; (E.C.)
| | - Francesc Fina
- Primary Care Services Information System (SISAP), Institut Català de la Salut, 08007 Barcelona, Spain; (E.C.)
| | - Clara Prats
- Department of Physics, Universitat Politècnica de Catalunya, Castelldefels, 08860 Barcelona, Spain; (A.P.-M.); (C.P.); (E.A.-L.)
| | - Jacobo Mendioroz Peña
- Public Health Agency of Catalonia, Department of Health, 08005 Barcelona, Spain; (L.B.); (S.M.M.); (J.M.P.)
- University of Vic—Central University of Catalonia (UVic-UCC), 08500 Vic, Spain
| | - Enric Alvarez-Lacalle
- Department of Physics, Universitat Politècnica de Catalunya, Castelldefels, 08860 Barcelona, Spain; (A.P.-M.); (C.P.); (E.A.-L.)
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Ramón A, Bas A, Herrero S, Blasco P, Suárez M, Mateo J. Personalized Assessment of Mortality Risk and Hospital Stay Duration in Hospitalized Patients with COVID-19 Treated with Remdesivir: A Machine Learning Approach. J Clin Med 2024; 13:1837. [PMID: 38610602 PMCID: PMC11013017 DOI: 10.3390/jcm13071837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Background: Despite advancements in vaccination, early treatments, and understanding of SARS-CoV-2, its impact remains significant worldwide. Many patients require intensive care due to severe COVID-19. Remdesivir, a key treatment option among viral RNA polymerase inhibitors, lacks comprehensive studies on factors associated with its effectiveness. Methods: We conducted a retrospective study in 2022, analyzing data from 252 hospitalized COVID-19 patients treated with remdesivir. Six machine learning algorithms were compared to predict factors influencing remdesivir's clinical benefits regarding mortality and hospital stay. Results: The extreme gradient boost (XGB) method showed the highest accuracy for both mortality (95.45%) and hospital stay (94.24%). Factors associated with worse outcomes in terms of mortality included limitations in life support, ventilatory support needs, lymphopenia, low albumin and hemoglobin levels, flu and/or coinfection, and cough. For hospital stay, factors included vaccine doses, lung density, pulmonary radiological status, comorbidities, oxygen therapy, troponin, lactate dehydrogenase levels, and asthenia. Conclusions: These findings underscore XGB's effectiveness in accurately categorizing COVID-19 patients undergoing remdesivir treatment.
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Affiliation(s)
- Antonio Ramón
- Department of Pharmacy, University General Hospital, 46014 Valencia, Spain; (A.R.); (A.B.); (S.H.); (P.B.)
- Medical Analysis Expert Group, Institute of Technology, University of Castilla-La Mancha, 16002 Cuenca, Spain
| | - Andrés Bas
- Department of Pharmacy, University General Hospital, 46014 Valencia, Spain; (A.R.); (A.B.); (S.H.); (P.B.)
| | - Santiago Herrero
- Department of Pharmacy, University General Hospital, 46014 Valencia, Spain; (A.R.); (A.B.); (S.H.); (P.B.)
| | - Pilar Blasco
- Department of Pharmacy, University General Hospital, 46014 Valencia, Spain; (A.R.); (A.B.); (S.H.); (P.B.)
- Medical Analysis Expert Group, Institute of Technology, University of Castilla-La Mancha, 16002 Cuenca, Spain
| | - Miguel Suárez
- Medical Analysis Expert Group, Institute of Technology, University of Castilla-La Mancha, 16002 Cuenca, Spain
- Department of Gastroenterology, Virgen de la Luz Hospital, 16002 Cuenca, Spain
| | - Jorge Mateo
- Medical Analysis Expert Group, Institute of Technology, University of Castilla-La Mancha, 16002 Cuenca, Spain
- Medical Analysis Expert Group, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
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Rahman MO, Kamigaki T, Thandar MM, Haruyama R, Yan F, Shibamura-Fujiogi M, Khin Maung Soe J, Islam MR, Yoneoka D, Miyahara R, Ota E, Suzuki M. Protection of the third-dose and fourth-dose mRNA vaccines against SARS-CoV-2 Omicron subvariant: a systematic review and meta-analysis. BMJ Open 2023; 13:e076892. [PMID: 38128943 DOI: 10.1136/bmjopen-2023-076892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
OBJECTIVES The rapid spread of the SARS-CoV-2 Omicron variant has raised concerns regarding waning vaccine-induced immunity and durability. We evaluated protection of the third-dose and fourth-dose mRNA vaccines against SARS-CoV-2 Omicron subvariant and its sublineages. DESIGN Systematic review and meta-analysis. DATA SOURCES Electronic databases and other resources (PubMed, Embase, CENTRAL, MEDLINE, CINAHL PLUS, APA PsycINFO, Web of Science, Scopus, ScienceDirect, MedRxiv and bioRxiv) were searched until December 2022. STUDY ELIGIBILITY CRITERIA We included studies that assessed the effectiveness of mRNA vaccine booster doses against SARS-CoV-2 infection and severe COVID-19 outcomes caused by the subvariant. DATA EXTRACTION AND SYNTHESIS Estimates of vaccine effectiveness (VE) at different time points after the third-dose and fourth-dose vaccination were extracted. Random-effects meta-analysis was used to compare VE of the third dose versus the primary series, no vaccination and the fourth dose at different time points. The certainty of the evidence was assessed by Grading of Recommendations, Assessments, Development and Evaluation approach. RESULTS This review included 50 studies. The third-dose VE, compared with the primary series, against SARS-CoV-2 infection was 48.86% (95% CI 44.90% to 52.82%, low certainty) at ≥14 days, and gradually decreased to 38.01% (95% CI 13.90% to 62.13%, very low certainty) at ≥90 days after the third-dose vaccination. The fourth-dose VE peaked at 14-30 days (56.70% (95% CI 50.36% to 63.04%), moderate certainty), then quickly declined at 61-90 days (22% (95% CI 6.40% to 37.60%), low certainty). Compared with no vaccination, the third-dose VE was 75.84% (95% CI 40.56% to 111.12%, low certainty) against BA.1 infection, and 70.41% (95% CI 49.94% to 90.88%, low certainty) against BA.2 infection at ≥7 days after the third-dose vaccination. The third-dose VE against hospitalisation remained stable over time and maintained 79.30% (95% CI 58.65% to 99.94%, moderate certainty) at 91-120 days. The fourth-dose VE up to 60 days was 67.54% (95% CI 59.76% to 75.33%, moderate certainty) for hospitalisation and 77.88% (95% CI 72.55% to 83.21%, moderate certainty) for death. CONCLUSION The boosters provided substantial protection against severe COVID-19 outcomes for at least 6 months, although the duration of protection remains uncertain, suggesting the need for a booster dose within 6 months of the third-dose or fourth-dose vaccination. However, the certainty of evidence in our VE estimates varied from very low to moderate, indicating significant heterogeneity among studies that should be considered when interpreting the findings for public health policies. PROSPERO REGISTRATION NUMBER CRD42023376698.
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Affiliation(s)
- Md Obaidur Rahman
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Taro Kamigaki
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Moe Moe Thandar
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Rei Haruyama
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Fangyu Yan
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Miho Shibamura-Fujiogi
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - July Khin Maung Soe
- Graduate School of Public Health, St Luke's International University, Chuo-ku, Tokyo, Japan
| | - Md Rafiqul Islam
- Department of Population Science and Human Resource Development, University of Rajshahi, Rajshahi, Bangladesh
| | - Daisuke Yoneoka
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Reiko Miyahara
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Erika Ota
- Graduate School of Nursing Science, Department of Global Health Nursing, St Luke's International University, Chuo-ku, Tokyo, Japan
| | - Motoi Suzuki
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
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Nishiyama T, Miyamatsu Y, Park H, Nakamura N, Yokokawa Shibata R, Iwami S, Nagasaki Y. Modeling COVID-19 vaccine booster-elicited antibody response and impact of infection history. Vaccine 2023; 41:7655-7662. [PMID: 38008663 DOI: 10.1016/j.vaccine.2023.11.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/28/2023] [Accepted: 11/18/2023] [Indexed: 11/28/2023]
Abstract
The 3-dose COVID-19 vaccine (booster vaccination) has been offered worldwide. As booster vaccinations continue, it is important to understand the antibody dynamics elicited by booster vaccination in order to evaluate and develop vaccination needs and strategies. Here, we investigated longitudinal data by monitoring IgG antibodies against the receptor binding domain (RBD) in health care workers. We extended our previously developed mathematical model to booster vaccines and successfully fitted antibody titers over time in the absence and presence of past SARS-CoV-2 infection. Quantitative analysis using our mathematical model indicated that anti-RBD IgG titers increase to a comparable extent after booster vaccination, regardless of the presence or absence of infection, but infection history extends the duration of antibody response by 1.28 times. Such a mathematical modeling approach can be used to inform future vaccination strategies on the basis of an individual's immune history. Our simple quantitative approach can be extended to any kind of vaccination and therefore can form a basis for policy decisions regarding the distribution of booster vaccines to strengthen immunity in future pandemics.
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Affiliation(s)
- Takara Nishiyama
- interdisciplinary Biology Laboratory (iBLab), Division of Natural Science, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Yuichiro Miyamatsu
- Department of Neurosurgery, National Hospital Organization Kyushu Medical Center, Fukuoka 810-8563, Japan; Division of Transcriptomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-0054, Japan
| | - Hyeongki Park
- interdisciplinary Biology Laboratory (iBLab), Division of Natural Science, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Naotoshi Nakamura
- interdisciplinary Biology Laboratory (iBLab), Division of Natural Science, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Risa Yokokawa Shibata
- Department of Advanced Transdisciplinary Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Shingo Iwami
- interdisciplinary Biology Laboratory (iBLab), Division of Natural Science, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan; Institute of Mathematics for Industry, Kyushu University, Fukuoka 819-0395, Japan; Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto 606-8501, Japan; NEXT-Ganken Program, Japanese Foundation for Cancer Research (JFCR), Tokyo 135-8550, Japan; Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS), RIKEN, Wako 351-0198, Japan; Science Groove Inc., Fukuoka 810-0041, Japan.
| | - Yoji Nagasaki
- Department of Infectious Disease, Clinical Research Institute, National Hospital Organization Kyushu Medical Center,1-8-1 Jigyohama, Chuo-ku, Fukuoka 810-8563, Japan.
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9
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García-Botella A, De la Serna Esteban S, López-Antoñanzas L, Avellana-Moreno R, Dziakova J, Cano Valderrama O, Martín-Antona E, Serrano-García I, Torres García AJ. Lessons Learned in Elective Surgeries After 6 Pandemic Waves of SARS-CoV-2. A Single European Center Experience. World J Surg 2023; 47:2958-2965. [PMID: 37875666 DOI: 10.1007/s00268-023-07222-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND The reported high surgical morbidity and mortality in patients with SARS-CoV-2 prompted preoperative screening and modification of surgical protocols. Although vaccination and treatment of COVID-19 have resulted in lower hospitalization rates and infection severity, publications on postoperative results have not been updated. The aim of the study was to analyze the outcomes of patients undergoing surgery in two periods with high incidence of SARS-CoV-2 infection, before and after vaccination. MATERIALS AND METHODS This is a prospective cohort study of patients undergoing surgery in two periods: March-June 2020 (Group2020) and December 2021-February 2022 (Group2022) (after massive vaccination). RESULTS In total, 618 patients who underwent surgery were included in the analysis (Group2020: 343 vs. Group2022: 275). Significantly more oncological procedures were performed in Group2020, and there were no differences in postoperative complications. Nosocomial SARS-CoV-2 infection occurred in 4 patients in Group2020 and 1 patient in Group2022. In Group 2022, 70 patients (25.4%) had COVID-19 prior to surgery, and 68 (97.1%) were vaccinated. Comparative analysis between patients with past COVID-19 and those without showed no difference in postoperative morbidity and mortality. According to the time elapsed between SARS-CoV-2 infection and surgery (≤ 7 or > 7 weeks), comparative analysis showed no significant differences. CONCLUSION The establishment of preoperative screening protocols for SARS-CoV-2 infection results in a low incidence of nosocomial infection and optimal postoperative outcomes. Preoperative SARS-CoV-2 infection in vaccinated patients was not associated with increased postoperative complications, even in shorter periods after infection. In surgical patients, individualized preoperative evaluation after SARS-CoV-2 infection may be more important than strict time limitation.
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Affiliation(s)
- Alejandra García-Botella
- Surgery Department (HepatoPancreatoBiliary Unit), Health Research Institute (IdISSC), Hospital Clínico San Carlos, C/Profesor Martín Lagos s/n, 28040, Madrid, Spain.
- Department of Surgery, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain.
| | - Sofía De la Serna Esteban
- Surgery Department (HepatoPancreatoBiliary Unit), Health Research Institute (IdISSC), Hospital Clínico San Carlos, C/Profesor Martín Lagos s/n, 28040, Madrid, Spain
- Department of Surgery, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Leyre López-Antoñanzas
- Surgery Department (HepatoPancreatoBiliary Unit), Health Research Institute (IdISSC), Hospital Clínico San Carlos, C/Profesor Martín Lagos s/n, 28040, Madrid, Spain
| | - Rocío Avellana-Moreno
- Surgery Department (HepatoPancreatoBiliary Unit), Health Research Institute (IdISSC), Hospital Clínico San Carlos, C/Profesor Martín Lagos s/n, 28040, Madrid, Spain
| | - Jana Dziakova
- Surgery Department (HepatoPancreatoBiliary Unit), Health Research Institute (IdISSC), Hospital Clínico San Carlos, C/Profesor Martín Lagos s/n, 28040, Madrid, Spain
- Department of Surgery, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Oscar Cano Valderrama
- Department of Surgery, Vigo; Instituto de Investigaciones Sanitarias Galicia Sur, Complejo Hospitalario Universitario de Vigo, Vigo, Spain
| | - Esteban Martín-Antona
- Surgery Department (HepatoPancreatoBiliary Unit), Health Research Institute (IdISSC), Hospital Clínico San Carlos, C/Profesor Martín Lagos s/n, 28040, Madrid, Spain
| | - Irene Serrano-García
- IdISSC, Methodological Research Support Unit, Hospital Clínico San Carlos, Madrid, Spain
| | - Antonio José Torres García
- Surgery Department (HepatoPancreatoBiliary Unit), Health Research Institute (IdISSC), Hospital Clínico San Carlos, C/Profesor Martín Lagos s/n, 28040, Madrid, Spain
- Department of Surgery, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
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10
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Gutwein O, Herzog Tzarfati K, Apel A, Rahimi-Levene N, Ilana L, Tadmor T, Koren-Michowitz M. Timing of BNT162b2 vaccine prior to COVID-19 infection, influence disease severity in patients with hematologic malignancies: Results from a cohort study. Cancer Med 2023; 12:20503-20510. [PMID: 37877352 PMCID: PMC10660398 DOI: 10.1002/cam4.6397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/09/2023] [Accepted: 07/23/2023] [Indexed: 10/26/2023] Open
Abstract
The COVID-19 pandemic continues to pose challenges to the treatment of hemato-oncology patients. Emergence of COVID-19 variants, availability of vaccine boosters and antiviral treatments could impact their outcome. We retrospectively studied patients with hematologic malignancies and confirmed COVID-19 during the Omicron outbreak. Of 116 evaluated patients, 16% developed severe or critical COVID-19. Diagnosis of chronic lymphocytic leukemia (CLL) was significantly associated with severe COVID-19 (p = 0.01). The vaccine effectiveness was related to the timing of the vaccine, with patients who received a mRNA vaccine within 7-90 days prior to COVID-19 being less likely to develop severe disease compared to all other patients (p = 0.019). There was no correlation between disease severity and antiviral therapies. Importantly, 45% of patients undergoing active hematological treatment had to interrupt their treatment due to COVID-19. In conclusion, patients with hematologic malignancies are at a considerable risk for severe COVID-19 during the Omicron outbreak, with patients with CLL being the most vulnerable. mRNA vaccines have the potential to protect hematological patients from severe COVID-19 if administered within the previous 3 months. Hematological treatment interruption is a frequent adverse outcome of COVID-19 infection.
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Affiliation(s)
- Odit Gutwein
- Department of Hematology, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | | | - Arie Apel
- Department of Hematology, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Naomi Rahimi-Levene
- Department of Hematology, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Levy Ilana
- Hematology Unit, Bnai Zion Medical Center, Haifa, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Tamar Tadmor
- Hematology Unit, Bnai Zion Medical Center, Haifa, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Maya Koren-Michowitz
- Department of Hematology, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
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11
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Avdeev SN, Chulanov VP, Alexeeva EI, Aleshina OA, Bereznikov AV, Kotenko ON, Lila AM, Mutovina ZY, Parovichnikova EN, Fomina DS, Frolova NF, Shevchenko AO. [The burden of COVID-19 in a heterogeneous population of immunocompromised patients - realities of the postpandemic]. TERAPEVT ARKH 2023; 95:722-729. [PMID: 38158913 DOI: 10.26442/00403660.2023.08.202391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 01/03/2024]
Abstract
On July 3, 2023, an interdisciplinary Council of Experts "The burden of COVID-19 in a heterogeneous population of immunocompromised patients - post-pandemic realities" was held in Moscow with leading experts in pulmonology, rheumatology, hematology, oncology, nephrology, allergology-immunology, transplantation, and infectious diseases. The aim of the meeting was to discuss the current clinical and epidemiologic situation related to COVID-19, the relevance of disease prevention strategies for high-risk patients. The experts addressed the following issues: 1) the disease burden of COVID-19 in 2023 for patients with immunodeficiency in different therapeutic areas; 2) the place of passive immunization with monoclonal antibodies as a method of COVID-19 prophylaxis among immunocompromised patients; 3) prerequisites for the inclusion of passive immunization of immunocompromised patients into routine clinical practice.
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Affiliation(s)
- S N Avdeev
- Sechenov First Moscow State Medical University (Sechenov University)
| | - V P Chulanov
- Sechenov First Moscow State Medical University (Sechenov University)
- National Medical Research Center for Phthisiopulmonology and Infectious Diseases
| | - E I Alexeeva
- Sechenov First Moscow State Medical University (Sechenov University)
- National Medical Research Center for Children's Health
| | | | | | - O N Kotenko
- City Clinical Hospital №52
- Pirogov Russian National Research Medical University
| | - A M Lila
- Nasonova Research Institute of Rheumatology
- Russian Medical Academy of Continuous Professional Education
| | - Z Y Mutovina
- City Clinical Hospital №52
- Central State Medical Academy of the Administrative Department of the President of the Russian Federation
| | | | - D S Fomina
- Sechenov First Moscow State Medical University (Sechenov University)
- City Clinical Hospital №52
| | - N F Frolova
- City Clinical Hospital №52
- Yevdokimov Moscow State University of Medicine and Dentistry
| | - A O Shevchenko
- Sechenov First Moscow State Medical University (Sechenov University)
- Pirogov Russian National Research Medical University
- Shumakov National Medical Research Center for Transplantology and Artificial Organs
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12
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Costa GJ, da Silva JR, da Silva CCA, de Lima TPF, Costa MM, Sousa MHO, Costa GCDS, Costa JI, Sales MJT. Risk factors for death and illness severity in vaccinated versus unvaccinated COVID-2019 inpatients: a retrospective cohort study. J Bras Pneumol 2023; 49:e20230145. [PMID: 37729337 PMCID: PMC10578947 DOI: 10.36416/1806-3756/e20230145] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/05/2023] [Indexed: 09/22/2023] Open
Abstract
OBJECTIVE To determine the clinical profile of COVID-19 inpatients who were vaccinated prior to hospitalization and to compare the risk factors for death and the 28-day survival rate of between those inpatients vaccinated with one, two, or three doses and unvaccinated COVID-19 inpatients. METHODS This was a retrospective observational cohort study involving COVID-19 patients admitted to a referral hospital in the city of Recife, Brazil, between July of 2020 and June of 2022. RESULTS The sample comprised 1,921 inpatients, 996 of whom (50.8%) were vaccinated prior to hospitalization. After adjusting the mortality risk for vaccinated patients, those undergoing invasive mechanical ventilation (IMV) had the highest mortality risk (adjusted OR [aOR] = 7.4; 95% CI, 3.8-14.1; p < 0.001), followed by patients > 80 years of age (aOR = 7.3; 95% CI, 3.4-15.4; p < 0.001), and those needing vasopressors (aOR = 5.6; 95% CI, 2.9-10.9; p < 0.001). After adjusting the mortality risk for all patients, having received three vaccine doses (aOR = 0.06; 95% CI, 0.03-0.11; p < 0.001) was the most important protective factor against death. There were progressive benefits of vaccination, reducing the frequency of ICU admissions, use for IMV, and death (respectively, from 44.9%, 39.0% and 39.9% after the first dose to 16.7%, 6.2% and 4.4% after the third dose), as well as significant improvements in survival after each subsequent dose (p < 0.001). CONCLUSIONS Vaccines were effective in reducing illness severity and death in this cohort of COVID-19 inpatients, and the administration of additional doses conferred them with accumulative vaccine protection.
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Affiliation(s)
| | - José Roberto da Silva
- . Departamento de Ensino e Pesquisa, Instituto de Medicina Integral Professor Fernando Figueira - IMIP - Recife (PE) Brasil
| | - Caio Cesar Arruda da Silva
- . Departamento de Ensino e Pesquisa, Instituto de Medicina Integral Professor Fernando Figueira - IMIP - Recife (PE) Brasil
| | | | - Mariana Menezes Costa
- . Departamento de Ensino e Pesquisa, Instituto de Medicina Integral Professor Fernando Figueira - IMIP - Recife (PE) Brasil
| | - Marcos Henrique Oliveira Sousa
- . Departamento de Ensino e Pesquisa, Instituto de Medicina Integral Professor Fernando Figueira - IMIP - Recife (PE) Brasil
| | | | - José Iran Costa
- . Departamento de Ensino e Pesquisa, Hospital Alfa, Recife (PE) Brasil
| | - Mozart Júlio Tabosa Sales
- . Departamento de Ensino e Pesquisa, Instituto de Medicina Integral Professor Fernando Figueira - IMIP - Recife (PE) Brasil
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13
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Monin MB, Baier LI, Gorny JG, Berger M, Zhou T, Mahn R, Sadeghlar F, Möhring C, Boesecke C, van Bremen K, Rockstroh JK, Strassburg CP, Eis-Hübinger AM, Schmid M, Gonzalez-Carmona MA. Deficient Immune Response following SARS-CoV-2 Vaccination in Patients with Hepatobiliary Carcinoma: A Forgotten, Vulnerable Group of Patients. Liver Cancer 2023; 12:339-355. [PMID: 37901199 PMCID: PMC10601882 DOI: 10.1159/000529608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/06/2023] [Indexed: 10/31/2023] Open
Abstract
Introduction Data on immune response rates following vaccination for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in patients with hepatobiliary carcinoma (HBC) are rare. However, impaired immunogenicity must be expected due to the combination of chronic liver diseases (CLDs) with malignancy and anticancer treatment. Methods In this prospective, longitudinal study, 101 patients were included, of whom 59 were patients with HBC under anticancer treatment. A cohort of patients with a past medical history of gastrointestinal cancer, of whom 28.6% had HBC without detectable active tumor disease having been off therapy for at least 12 months, served as control. Levels of SARS-CoV-2 anti-spike IgG, surrogate neutralization antibodies (sNABs), and cellular immune responses were compared. In uni- and multivariable subgroup analyses, risk factors for impaired immunogenicity were regarded. Data on rates and clinical courses of SARS-CoV-2 infections were documented. Results In patients with HBC under active treatment, levels of SARS-CoV-2 anti-spike IgG were significantly lower (2.55 log10 BAU/mL; 95% CI: 2.33-2.76; p < 0.01) than in patients in follow-up care (3.02 log10 BAU/mL; 95% CI: 2.80-3.25) 4 weeks after two vaccinations. Antibody levels decreased over time, and differences between the groups diminished. However, titers of SARS-CoV-2 sNAB were for a longer time significantly lower in patients with HBC under treatment (64.19%; 95% CI: 55.90-72.48; p < 0.01) than in patients in follow-up care (84.13%; 95% CI: 76.95-91.31). Underlying CLD and/or liver cirrhosis Child-Pugh A or B (less than 8 points) did not seem to further impair immunogenicity. Conversely, chemotherapy and additional immunosuppression were found to significantly reduce antibody levels. After a third booster vaccination for SARS-CoV-2, levels of total and neutralization antibodies were equalized between the groups. Moreover, cellular response rates were balanced. Clinically, infection rates with SARS-CoV-2 were low, and no severe courses were observed. Conclusion Patients with active HBC showed significantly impaired immune response rates to basic vaccinations for SARS-CoV-2, especially under chemotherapy, independent of underlying cirrhotic or non-cirrhotic CLD. Although booster vaccinations balanced differences, waning immunity was observed over time and should be monitored for further recommendations. Our data help clinicians decide on individual additional booster vaccinations and/or passive immunization or antiviral treatment in patients with HBC getting infected with SARS-CoV-2.
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Affiliation(s)
- Malte B. Monin
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
- German Centre for Infection Research (DZIF), Partner-site Cologne-Bonn, Bonn, Germany
| | - Leona I. Baier
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Jens G. Gorny
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Moritz Berger
- Institute of Medical Biometry, Informatics and Epidemiology, Faculty of Medicine, University of Bonn, Bonn, Germany
| | - Taotao Zhou
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Robert Mahn
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Farsaneh Sadeghlar
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Christian Möhring
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Christoph Boesecke
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
- German Centre for Infection Research (DZIF), Partner-site Cologne-Bonn, Bonn, Germany
| | - Kathrin van Bremen
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
- German Centre for Infection Research (DZIF), Partner-site Cologne-Bonn, Bonn, Germany
| | - Jürgen K. Rockstroh
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
- German Centre for Infection Research (DZIF), Partner-site Cologne-Bonn, Bonn, Germany
| | | | | | - Matthias Schmid
- Institute of Medical Biometry, Informatics and Epidemiology, Faculty of Medicine, University of Bonn, Bonn, Germany
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Andersson NW, Thiesson EM, Baum U, Pihlström N, Starrfelt J, Faksová K, Poukka E, Meijerink H, Ljung R, Hviid A. Comparative effectiveness of bivalent BA.4-5 and BA.1 mRNA booster vaccines among adults aged ≥50 years in Nordic countries: nationwide cohort study. BMJ 2023; 382:e075286. [PMID: 37491022 PMCID: PMC10364194 DOI: 10.1136/bmj-2022-075286] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
OBJECTIVE To estimate the effectiveness of the bivalent mRNA booster vaccines containing the original SARS-CoV-2 and omicron BA.4-5 or BA.1 subvariants as the fourth dose against severe covid-19. DESIGN Nationwide cohort analyses, using target trial emulation. SETTING Denmark, Finland, Norway, and Sweden, from 1 July 2022 to 10 April 2023. PARTICIPANTS People aged ≥50 years who had received at least three doses of covid-19 vaccine (that is, a primary course and a first booster). MAIN OUTCOME MEASURES The Kaplan-Meier estimator was used to compare the risk of hospital admission and death related to covid-19 in people who received a bivalent Comirnaty (Pfizer-BioNTech) or Spikevax (Moderna) BA.4-5 or BA.1 mRNA booster vaccine as a fourth dose (second booster) with three dose (first booster) vaccinated people and between four dose vaccinated people. RESULTS A total of 1 634 199 people receiving bivalent BA.4-5 fourth dose booster and 1 042 124 receiving bivalent BA.1 fourth dose booster across the four Nordic countries were included. Receipt of a bivalent BA.4-5 booster as a fourth dose was associated with a comparative vaccine effectiveness against admission to hospital with covid-19 of 67.8% (95% confidence interval 63.1% to 72.5%) and a risk difference of -91.9 (95% confidence interval -152.4 to -31.4) per 100 000 people at three months of follow-up compared with having received three doses of vaccine (289 v 893 events). The corresponding comparative vaccine effectiveness and risk difference for bivalent BA.1 boosters (332 v 977 events) were 65.8% (59.1% to 72.4%) and -112.9 (-179.6 to -46.2) per 100 000, respectively. Comparative vaccine effectiveness and risk difference against covid-19 related death were 69.8% (52.8% to 86.8%) and -34.1 (-40.1 to -28.2) per 100 000 for bivalent BA.4-5 booster (93 v 325 events) and 70.0% (50.3% to 89.7%) and -38.7 (-65.4 to -12.0) per 100 000 for BA.1 booster (86 v 286) as a fourth dose. Comparing bivalent BA.4-5 and BA.1 boosters as a fourth dose directly resulted in a three month comparative vaccine effectiveness and corresponding risk difference of -14.9% (-62.3% to 32.4%) and 10.0 (-14.4 to 34.4) per 100 000 people for admission to hospital with covid-19 (802 v 932 unweighted events) and -40.7% (-123.4% to 42.1%) and 8.1 (-3.3 to 19.4) per 100 000 for covid-19 related death (229 v 243 unweighted events). The comparative vaccine effectiveness did not differ across sex and age (</≥70 years) and seemed to be sustained up to six months from the day of vaccination with modest waning. CONCLUSION Vaccination with bivalent BA.4-5 or BA.1 mRNA booster vaccines as a fourth dose was associated with reduced rates of covid-19 related hospital admission and death among adults aged ≥50 years. The protection afforded by the bivalent BA.4-5 and BA.1 boosters did not differ significantly when directly compared, and any potential difference would most likely be very small in absolute numbers.
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Affiliation(s)
| | | | - Ulrike Baum
- Infectious Disease Control and Vaccinations Unit, Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Nicklas Pihlström
- Division of Licensing, Swedish Medical Products Agency, Uppsala, Sweden
| | - Jostein Starrfelt
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
| | - Kristýna Faksová
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Eero Poukka
- Infectious Disease Control and Vaccinations Unit, Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Hinta Meijerink
- Department of Infection Control and Vaccines, Norwegian Institute of Public Health, Oslo, Norway
| | - Rickard Ljung
- Division of Use and Information, Swedish Medical Products Agency, Uppsala, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anders Hviid
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
- Pharmacovigilance Research Center, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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15
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Wei Y, Jia KM, Zhao S, Hung CT, Mok CKP, Poon PKM, Man Leung EY, Wang MH, Yam CHK, Chow TY, Guo Z, Yeoh EK, Chong KC. Estimation of Vaccine Effectiveness of CoronaVac and BNT162b2 Against Severe Outcomes Over Time Among Patients With SARS-CoV-2 Omicron. JAMA Netw Open 2023; 6:e2254777. [PMID: 36735253 PMCID: PMC9898822 DOI: 10.1001/jamanetworkopen.2022.54777] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
IMPORTANCE Few studies have evaluated the waning of vaccine effectiveness against severe outcomes caused by SARS-CoV-2 Omicron infection. Hong Kong is providing inactivated and mRNA vaccines, but the population had limited protection from natural infections before the Omicron variant emerged. OBJECTIVE To examine the change in vaccine effectiveness against hospitalization and mortality due to the Omicron variant over time. DESIGN, SETTING, AND PARTICIPANTS This case-control study included adults with SARS-CoV-2 Omicron variant infection who died or were hospitalized in Hong Kong from January 1 to June 5, 2022 (ie, case participants), and adults with SARS-CoV-2 Omicron, sampled from the public health registry during the study period (ie, control participants), who were matched to case participants by propensity score. EXPOSURES Vaccination status of the individuals. MAIN OUTCOMES AND MEASURES Estimated vaccine effectiveness against death, death or hospitalization, and death among hospitalized patients. Vaccine effectiveness was calculated as 1 - adjusted odds ratio obtained by conditional logistic regression adjusted with covariates for each period following vaccination. RESULTS There were 32 823 case participants (25 546 [77.8%] ≥65 years; 16 930 [47.4%] female) and 131 328 control participants (100 041 [76.2%] ≥65 years; 66 625 [46.6%] female) in the sample analyzed for the death or hospitalization outcome. Vaccine effectiveness against death or hospitalization was maintained for at least 6 months after the second dose of both CoronaVac (74.0%; 95% CI, 71.8%-75.8%) and BNT162b2 (77.4%; 95% CI, 75.5%-79.0%) vaccines. Vaccine effectiveness against death in those aged 18 to 49 years was 86.4% (95% CI, 85.8%-87.0%) and 92.9% (95% CI, 92.6%-93.2%) for those receiving 2 doses of CoronaVac and BNT162b2, respectively, while for patients aged 80 years or older, it dropped to 61.4% (95% CI, 59.8%-63.2%) and 52.7% (95% CI, 50.2%-55.6%) for CoronaVac and BNT162b2, respectively. Nevertheless, overall vaccine effectiveness against death at 4 to 6 months after the third dose was greater than 90% for CoronaVac, BNT162b2, and the mixed vaccine schedule (eg, mixed vaccines: vaccine effectiveness, 92.2%; 95% CI, 89.2%-95.1%). CONCLUSIONS AND RELEVANCE While vaccines were generally estimated to be effective against severe outcomes caused by SARS-CoV-2 Omicron infection, this analysis found that protection in older patients was more likely to wane 6 months after the second dose. Hence, a booster dose is recommended for older patients to restore immunity. This is especially critical in a setting like Hong Kong, where third-dose coverage is still insufficient among older residents.
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Affiliation(s)
- Yuchen Wei
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Katherine Min Jia
- Center for Communicable Disease Dynamics, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Shi Zhao
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Tim Hung
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Chris Ka Pun Mok
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Paul Kwok Ming Poon
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Eman Yee Man Leung
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Maggie Haitian Wang
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Carrie Ho Kwan Yam
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Tsz Yu Chow
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Zihao Guo
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Eng Kiong Yeoh
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Ka Chun Chong
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
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16
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Fericean RM, Oancea C, Reddyreddy AR, Rosca O, Bratosin F, Bloanca V, Citu C, Alambaram S, Vasamsetti NG, Dumitru C. Outcomes of Elderly Patients Hospitalized with the SARS-CoV-2 Omicron B.1.1.529 Variant: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2150. [PMID: 36767517 PMCID: PMC9915911 DOI: 10.3390/ijerph20032150] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/12/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
The Omicron (B.1.1.529) variant of the severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) had an increased rate of spreading among the general population. Although this virus mutation resulted in milder symptoms, those on the vulnerable side of the population are still in danger of developing severe symptoms. Thus, this systematic review focused on identifying the clinical outcomes of older age patients (>65) that are hospitalized with the SARS-CoV-2 Omicron variant. The research was conducted using four electronic databases (PubMed, Scopus, Web of Science, and ProQuest Central), with a search query in December 2022 that comprised the duration of the COVID-19 pandemic. The inclusion criteria comprised (1) a population of patients older than 65 years, (2) a history of hospitalization for SARS-CoV-2 infection, and (3) infection with Omicron B.1.1.529 variant. The initial search generated 295 articles, out of which six were included in the systematic review, and a total of 7398 patients. The main findings were that when looking at the elderly population, the mortality and hospitalization rates remained high. This is because older people are more vulnerable and have more comorbidities that interfere with the virus's progress. However, there is inconsistency in mortality rates, since the data reported by the included studies had different selection criteria based on the severity of the COVID-19 infection. Although no statistically significant differences were found between the unvaccinated and vaccinated groups, patients who got booster doses of vaccination had a lower likelihood of developing severe symptoms, serving as a protective factor for this population.
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Affiliation(s)
- Roxana Manuela Fericean
- Department XIII, Discipline of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Cristian Oancea
- Center for Research and Innovation in Precision Medicine of Respiratory Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Akash Reddy Reddyreddy
- School of General Medicine, Bhaskar Medical College, Amdapur Road 156-162, Hyderabad 500075, India
| | - Ovidiu Rosca
- Department XIII, Discipline of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Felix Bratosin
- Department XIII, Discipline of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Vlad Bloanca
- Department of Plastic Surgery, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Cosmin Citu
- Department of Obstetrics and Gynecology, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Satish Alambaram
- School of General Medicine, Bhaskar Medical College, Amdapur Road 156-162, Hyderabad 500075, India
| | - Neeharika Gayatri Vasamsetti
- Faculty of General Medicine, Kaloji Narayana Rao University of Health Sciences, Nizampura, Warangal 506007, India
| | - Catalin Dumitru
- Department of Obstetrics and Gynecology, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
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17
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Beraud G, Bouetard L, Civljak R, Michon J, Tulek N, Lejeune S, Millot R, Garchet-Beaudron A, Lefebvre M, Velikov P, Festou B, Abgrall S, Lizatovic IK, Baldolli A, Esmer H, Blanchi S, Froidevaux G, Kapincheva N, Faucher JF, Duvnjak M, Afşar E, Švitek L, Yarimoglu S, Yarimoglu R, Janssen C, Epaulard O. Impact of vaccination on the presence and severity of symptoms in hospitalized patients with an infection of the Omicron variant (B.1.1.529) of the SARS-CoV-2 (subvariant BA.1). Clin Microbiol Infect 2022; 29:642-650. [PMID: 36587737 PMCID: PMC9798780 DOI: 10.1016/j.cmi.2022.12.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The emergence of SARS-CoV-2 variants raised questions about the extent to which vaccines designed in 2020 have remained effective. We aimed to assess whether vaccine status was associated with the severity of Omicron SARS-CoV-2 infection in hospitalized patients. METHODS We conducted an international, multi-centric, retrospective study in 14 centres (Bulgaria, Croatia, France, and Turkey). We collected data on patients hospitalized for ≥24 hours between 1 December 2021 and 3 March 2022 with PCR-confirmed infection at a time of exclusive Omicron circulation and hospitalization related or not related to the infection. Patients who had received prophylaxis by monoclonal antibodies were excluded. Patients were considered fully vaccinated if they had received at least two injections of either mRNA and/or ChAdOx1-S or one injection of Ad26.CoV2-S vaccines. RESULTS Among 1215 patients (median age, 73.0 years; interquartile range, 57.0-84.0; 51.3% men), 746 (61.4%) were fully vaccinated. In multivariate analysis, being vaccinated was associated with lower 28-day mortality (Odds Ratio [95% Confidence Interval] (OR [95CI]) = 0.50 [0.32-0.77]), intensive care unit admission (OR [95CI] = 0.40 [0.26-0.62]), and oxygen requirement (OR [95CI] = 0.34 [0.25-0.46]), independent of age and comorbidities. When co-analysing these patients with Omicron infection with 948 patients with Delta infection from a study we recently conducted, Omicron infection was associated with lower 28-day mortality (OR [95CI] = 0.53 [0.37-0.76]), intensive care unit admission (OR [95CI] = 0.19 [0.12-0.28]), and oxygen requirements (OR [95CI] = 0.50 [0.38-0.67]), independent of age, comorbidities, and vaccination status. DISCUSSION Originally designed vaccines have remained effective on the severity of Omicron SARS-CoV-2 infection. Omicron is associated with a lower risk of severe forms, independent of vaccination and patient characteristics.
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Affiliation(s)
- Guillaume Beraud
- Infectious Disease Department, University Hospital of Poitiers, Poitiers, France.
| | - Laura Bouetard
- Assistance Publique des Hôpitaux de Paris, Hôpital Antoine Béclère, Service de Médecine Interne, Clamart, France,Université Paris-Saclay, Université de Versailles Saint-Quentin-en-Yvelines, INSERM U1018, Centre de Recherche en Épidémiologie et Santé des Populations, Le Kremlin-Bicêtre, France
| | - Rok Civljak
- University Hospital for Infectious Diseases ‘Dr. Fran Mihaljevic’ Zagreb, Croatia,University of Zagreb School of Medicine, Zagreb, Croatia
| | - Jocelyn Michon
- Department of Infectious Diseases, University Hospital of Caen, Caen, France
| | - Necla Tulek
- Atilim University, Department of Infectious Diseases and Clinical Microbiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Sophie Lejeune
- Infectious Diseases, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
| | - Romain Millot
- Infectious Disease Department, University Hospital of Poitiers, Poitiers, France
| | | | - Maeva Lefebvre
- Infectious Diseases Department, Centre for Prevention of Infectious and Transmissible Diseases, Centre Hospitalier Universitaire de Nantes, Nantes, France,INSERM Centre d'Investigation Clinique 1413 Nantes University, Nantes, France
| | - Petar Velikov
- Infectious Diseases Hospital ‘Prof. Ivan Kirov’, Medical University of Sofia, Sofia, Bulgaria
| | - Benjamin Festou
- Centre Hospitalier Universitaire de Limoges, Department of Infectious Diseases and Tropical Medicine, Limoges, France
| | - Sophie Abgrall
- Assistance Publique des Hôpitaux de Paris, Hôpital Antoine Béclère, Service de Médecine Interne, Clamart, France,Université Paris-Saclay, Université de Versailles Saint-Quentin-en-Yvelines, INSERM U1018, Centre de Recherche en Épidémiologie et Santé des Populations, Le Kremlin-Bicêtre, France
| | - Ivan K. Lizatovic
- University Hospital for Infectious Diseases ‘Dr. Fran Mihaljevic’ Zagreb, Croatia
| | - Aurélie Baldolli
- Department of Infectious Diseases, University Hospital of Caen, Caen, France
| | - Huseyin Esmer
- Atilim University, Department of Infectious Diseases and Clinical Microbiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Sophie Blanchi
- Infectious Diseases Department, Centre Hospitalier, Le Mans, France
| | - Gabrielle Froidevaux
- Infectious Diseases Department, Centre for Prevention of Infectious and Transmissible Diseases, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Nikol Kapincheva
- Infectious Diseases Hospital ‘Prof. Ivan Kirov’, Medical University of Sofia, Sofia, Bulgaria
| | - Jean-François Faucher
- Centre Hospitalier Universitaire de Limoges, Department of Infectious Diseases and Tropical Medicine, Limoges, France,INSERM U1094, Limoges, France
| | - Mario Duvnjak
- Clinic for Infectious Diseases, University Hospital Centre Osijek, Osijek, Croatia,Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, Osijek, Croatia
| | - Elçin Afşar
- Atılım University, Vocational School of Health Services, Ankara, Turkey
| | - Luka Švitek
- Clinic for Infectious Diseases, University Hospital Centre Osijek, Osijek, Croatia,Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, Osijek, Croatia
| | | | | | - Cécile Janssen
- Infectious Disease Unit, Centre Hospitalier Annecy Genevois, Annecy, France
| | - Olivier Epaulard
- Infectious Diseases, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
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18
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Mella-Torres A, Escobar A, Barrera-Avalos C, Vargas-Salas S, Pirazzoli M, Gonzalez U, Valdes D, Rojas P, Luraschi R, Vallejos-Vidal E, Imarai M, Sandino AM, Reyes-López FE, Vera R, Acuña-Castillo C. Epidemiological characteristics of Omicron and Delta SARS-CoV-2 variant infection in Santiago, Chile. Front Public Health 2022; 10:984433. [PMID: 36339233 PMCID: PMC9634544 DOI: 10.3389/fpubh.2022.984433] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 09/14/2022] [Indexed: 01/25/2023] Open
Abstract
The variant of concern (VOC) SARS-CoV-2 Omicron (B.1.1529) has been described as a highly contagious variant but less virulent than the current variant being monitored (VBM) Delta (B.1.617.2), causing fewer cases of hospitalizations, symptomatology, and deaths associated with COVID-19 disease. Although the epidemiological comparison of both variants has been previously reported in other countries, no report indicates their behavior and severity of infection in Chile. In this work, we report for the first time the effect of the Omicron and Delta variants in a cohort of 588 patients from the Hospital de Urgencia Asistencia pública (HUAP), a high-complexity health center in Santiago, Chile. This report is framed at the beginning of Chile's third wave of the COVID-19 pandemic, with a marked increase in the Omicron variant and a decrease in the circulating Delta variant. Our results indicated a similar proportion of patients with a complete vaccination schedule for both variants. However, the Delta variant was associated with a higher prevalence of hospitalization and more significant symptomatology associated with respiratory distress. On the other hand, our data suggest that vaccination is less effective in preventing infection by the Omicron variant. This antecedent, with a low severity but high contagiousness, suggests that the Omicron variant could even collapse the primary health care service due to the high demand for health care.
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Affiliation(s)
- Andrea Mella-Torres
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Alejandro Escobar
- Laboratorio Biología Celular y Molecular, Instituto de Investigación en Ciencias Odontológicas, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Carlos Barrera-Avalos
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | | | | | - Ulises Gonzalez
- Hospital de Urgencia Asistencia Pública (HUAP), Santiago, Chile
| | - Daniel Valdes
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Patricio Rojas
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Roberto Luraschi
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Eva Vallejos-Vidal
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Mónica Imarai
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Ana María Sandino
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe E. Reyes-López
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Rodrigo Vera
- Hospital de Urgencia Asistencia Pública (HUAP), Santiago, Chile
| | - Claudio Acuña-Castillo
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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19
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Joung SY, Ebinger JE, Sun N, Liu Y, Wu M, Tang AB, Prostko JC, Frias EC, Stewart JL, Sobhani K, Cheng S. Awareness of SARS-CoV-2 Omicron Variant Infection Among Adults With Recent COVID-19 Seropositivity. JAMA Netw Open 2022; 5:e2227241. [PMID: 35976645 PMCID: PMC9386542 DOI: 10.1001/jamanetworkopen.2022.27241] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
IMPORTANCE Some individuals who were infected by the SARS-CoV-2 Omicron variant may have been completely unaware of their infectious status while the virus was actively transmissible. OBJECTIVE To examine awareness of infectious status among individuals during the recent Omicron variant surge in a diverse and populous urban region of Los Angeles County. DESIGN, SETTING, AND PARTICIPANTS This cohort study analyzed the records of adult employees and patients of an academic medical center who were enrolled in a longitudinal COVID-19 serological study in Los Angeles County, California. These participants had 2 or more serial anti-nucleocapsid IgG (IgG-N) antibody measurements at least 1 month apart, with the first occurring after the end of a regional Delta variant surge (September 15, 2021) and a subsequent one occurring after the start of a regional Omicron variant surge (December 15, 2021). Adults with evidence of new SARS-CoV-2 infection occurring during the Omicron variant surge period through May 4, 2022, were included in the present study sample. EXPOSURES Recent Omicron variant infection as evidenced by SARS-CoV-2 seroconversion. MAIN OUTCOMES AND MEASURES Awareness of recent SARS-CoV-2 infection was ascertained from review of self-reported health updates, medical records, and COVID-19 testing data. RESULTS Of the 210 participants (median [range] age, 51 (23-84) years; 136 women [65%]) with serological evidence of recent Omicron variant infection, 44% (92) demonstrated awareness of any recent Omicron variant infection and 56% (118) reported being unaware of their infectious status. Among those who were unaware, 10% (12 of 118) reported having had any symptoms, which they attributed to a common cold or other non-SARS-CoV-2 infection. In multivariable analyses that accounted for demographic and clinical characteristics, participants who were health care employees of the medical center were more likely than nonemployees to be aware of their recent Omicron variant infection (adjusted odds ratio, 2.46; 95% CI, 1.30-4.65). CONCLUSIONS AND RELEVANCE Results of this study suggest that more than half of adults with recent Omicron variant infection were unaware of their infectious status and that awareness was higher among health care employees than nonemployees, yet still low overall. Unawareness may be a highly prevalent factor associated with rapid person-to-person transmission within communities.
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Affiliation(s)
- Sandy Y. Joung
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Joseph E. Ebinger
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Nancy Sun
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Yunxian Liu
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Min Wu
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Amber B. Tang
- David Geffen School of Medicine, UCLA (University of California, Los Angeles)
| | - John C. Prostko
- Applied Research and Technology, Abbott Diagnostics, Abbott Park, Illinois
| | - Edwin C. Frias
- Applied Research and Technology, Abbott Diagnostics, Abbott Park, Illinois
| | - James L. Stewart
- Applied Research and Technology, Abbott Diagnostics, Abbott Park, Illinois
| | - Kimia Sobhani
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Susan Cheng
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
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