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Bailón-Cuenca JA, Cortés-Sarabia K, Legorreta-Soberanis J, Alvarado-Castro VM, Juárez-Baltazar U, Sánchez-Gervacio BM, Vences-Velázquez A, Leyva-Vázquez MA, Del Moral-Hernández O, Illades-Aguiar B. Detection of IgG antibodies against the receptor binding domain of the spike protein and nucleocapsid of SARS-CoV-2 at university students from Southern Mexico: a cross-sectional study. BMC Infect Dis 2024; 24:584. [PMID: 38867165 PMCID: PMC11170790 DOI: 10.1186/s12879-024-09435-5] [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: 12/04/2023] [Accepted: 05/27/2024] [Indexed: 06/14/2024] Open
Abstract
BACKGROUND Natural infection and vaccination against SARS-CoV-2 is associated with the development of immunity against the structural proteins of the virus. Specifically, the two most immunogenic are the S (spike) and N (nucleocapsid) proteins. Seroprevalence studies performed in university students provide information to estimate the number of infected patients (symptomatic or asymptomatic) and generate knowledge about the viral spread, vaccine efficacy, and epidemiological control. Which, the aim of this study was to evaluate IgG antibodies against the S and N proteins of SARS-CoV-2 at university students from Southern Mexico. METHODS A total of 1418 serum samples were collected from eighteen work centers of the Autonomous University of Guerrero. Antibodies were detected by Indirect ELISA using as antigen peptides derived from the S and N proteins. RESULTS We reported a total seroprevalence of 39.9% anti-S/N (positive to both antigens), 14.1% anti-S and 0.5% anti-N. The highest seroprevalence was reported in the work centers from Costa Grande, Acapulco and Centro. Seroprevalence was associated with age, COVID-19, contact with infected patients, and vaccination. CONCLUSION University students could play an essential role in disseminating SARS-CoV-2. We reported a seroprevalence of 54.5% against the S and N proteins, which could be due to the high population rate and cultural resistance to safety measures against COVID-19 in the different regions of the state.
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Affiliation(s)
- Jesús Adolfo Bailón-Cuenca
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Karen Cortés-Sarabia
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - José Legorreta-Soberanis
- Centro de Investigación de Enfermedades Tropicales, Universidad Autónoma de Guerrero, Acapulco, Guerrero, México
| | | | - Ulises Juárez-Baltazar
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | | | - Amalia Vences-Velázquez
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero. Chilpancingo de los Bravo, Guerrero, México.
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México.
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Suryawanshi P, Patil‐Takbhate B, Athavale P, Mirza S, Tripathy A, Kanitkar S, Shivnitwar S, Barthwal MS, Dole S, Chavan H, Jali P, Pawale S, Kakad D, Kakrani AL, Bhawalkar J, Gandhi M, Chaturvedi S, Karandikar M, Tripathy S. T-cell responses in COVID-19 survivors 6-8 months after infection: A longitudinal cohort study in Pune. Immun Inflamm Dis 2024; 12:e1238. [PMID: 38860770 PMCID: PMC11165687 DOI: 10.1002/iid3.1238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/26/2024] [Accepted: 03/20/2024] [Indexed: 06/12/2024] Open
Abstract
BACKGROUND The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immune response is crucial for disease management, although diminishing immunity raises the possibility of reinfection. METHODS We examined the immunological response to SARS-CoV-2 in a cohort of convalescent COVID-19 patients in matched samples collected at 1 and 6-8 months after infection. The peripheral blood mononuclear cells were isolated from enrolled study participants and flow cytometry analysis was done to assess the lymphocyte subsets of naive, effector, central memory, and effector memory CD4+ or CD8+ T cells in COVID-19 patients at 1 and 6-8 months after infection. Immunophenotypic characterization of immune cell subsets was performed on individuals who were followed longitudinally for 1 month (n = 44) and 6-8 months (n = 25) after recovery from COVID infection. RESULTS We observed that CD4 +T cells in hospitalized SARS-CoV-2 patients tended to decrease, whereas CD8+ T cells steadily recovered after 1 month, while there was a sustained increase in the population of effector T cells and effector memory T cells. Furthermore, COVID-19 patients showed persistently low B cells and a small increase in the NK cell population. CONCLUSION Our findings show that T cell responses were maintained at 6-8 months after infection. This opens new pathways for further research into the long-term effects in COVID-19 immunopathogenesis.
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Affiliation(s)
- Poonam Suryawanshi
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Bhagyashri Patil‐Takbhate
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Prachi Athavale
- Department of Microbiology, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Shahzad Mirza
- Department of Microbiology, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | | | - Shubhangi Kanitkar
- Department of General Medicine, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Sachin Shivnitwar
- Department of General Medicine, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Madhusudan S. Barthwal
- Department of Respiratory Medicine, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, Pimpri, (deemed to be University)PuneIndia
| | - Sachin Dole
- Department of Respiratory Medicine, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, Pimpri, (deemed to be University)PuneIndia
| | - Hanumant Chavan
- Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Priyanka Jali
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Sujata Pawale
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Dhanashree Kakad
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Arjun Lal Kakrani
- Department of General Medicine, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Jitendra Bhawalkar
- Department of Community Medicine, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Madhura Gandhi
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | | | - Mahesh Karandikar
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
| | - Srikanth Tripathy
- Central Research Facility, Dr D. Y. Patil Medical College, Hospital and Research CentreDr D. Y. Patil Vidyapeeth, (deemed to be University)PimpriPuneIndia
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3
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Ödling M, Andersson N, Ekström S, Roxhed N, Schwenk JM, Björkander S, Bergström A, Melén E, Kull I. COVID-19 vaccine uptake among young adults: Influence of asthma and sociodemographic factors. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2024; 3:100231. [PMID: 38524785 PMCID: PMC10959661 DOI: 10.1016/j.jacig.2024.100231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 03/26/2024]
Abstract
Background Asthma was initially described as a risk factor for severe coronavirus disease 2019 (COVID-19), but the uptake of COVID-19 vaccine among young adults with asthma is not well studied. Objective The aims were to assess COVID-19 vaccine uptake among young adults in general and to explore potential determinants including sociodemographic factors and asthma. Methods Participants from the population-based birth cohort BAMSE (Barn/Child, Allergy, Milieu, Stockholm, Epidemiology) were included: 4,064 in the study population, 3,064 in a follow-up at age 24 years, and 2,049 in a COVID-19 follow-up (mean age, 26.5 years). Asthma and asthma-associated characteristics were assessed through questionnaires and clinical data. Data on all COVID-19 vaccines registered between January 1, 2021, and February 15, 2023, were extracted from the National Vaccination Register. Results In the study population (n = 4,064), 53.9% had ≥3 COVID-19 vaccine doses registered. In the 24-year follow-up population (n = 3,064), vaccine uptake differed in relation to education (P < .001). Among the participants with university/college education, 65.7% had an uptake of ≥3 doses of vaccine, compared to 54.1% among the participants with elementary school/high school education. Participants with asthma had decreased odds of receiving ≥3 doses (adjusted odds ratio = 0.62; 95% confidence interval, 0.41-0.92) and ≥2 compared to peers without asthma. Those with uncontrolled disease also had decreased odds of receiving ≥3 doses (adjusted odds ratio = 0.30; 95% confidence interval, 0.13-0.66) and ≥2 compared to participants with controlled asthma. Conclusions COVID-19 vaccine uptake among young adults is lower in individuals from households with lower socioeconomic status and among those with asthma, including uncontrolled asthma.
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Affiliation(s)
- Maria Ödling
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Niklas Andersson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sandra Ekström
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Niclas Roxhed
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Stockholm, Sweden
- MedTechLabs, Bioclinicum, Karolinska University Hospital, Solna, Sweden
| | - Jochen M. Schwenk
- Science for Life Laboratory, Department of Protein Science, KTH Royal Institute Technology, Solna, Sweden
| | - Sophia Björkander
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Anna Bergström
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Erik Melén
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs’ Children and Youth Hospital, Stockholm, Sweden
| | - Inger Kull
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs’ Children and Youth Hospital, Stockholm, Sweden
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4
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Mansouri L, Kalm F, Björkander S, Melén E, Lundahl J, Nopp A. Sequential engagement of adhesion molecules and cytokine receptors impacts both piecemeal and anaphylactic degranulation of human basophils. Immunology 2024; 171:609-617. [PMID: 38226657 DOI: 10.1111/imm.13754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 01/07/2024] [Indexed: 01/17/2024] Open
Abstract
Basophils are rare granulocytes in circulation which home to tissues in a process depending on rolling, adhesion and cytokine exposure. However, it is still unclear how these steps affect basophil degranulation. Our aim was to imitate these processes associated with homing by sequential crosslinking of adhesion molecules and cytokine exposure and evaluate the effect on basophil piecemeal (PMD) and anaphylactic degranulation (AND). Blood donors with or without allergic asthma were recruited from an ongoing cohort study. Basophils were subjected to CD62L-, CD49d- or CD11b crosslinking and IL-3 or IL-33 stimulation in different orders followed by anti-IgE and fMLP stimulation. Basophil CD203c and CD63 expression were analysed by flow cytometry to determine PMD and AND, respectively. IL-3 induced PMD in basophils and combined with CD62L- or CD11b crosslinking, IL-3 potentiated the degranulation regardless of sequential order. IL-3 priming followed by adhesion molecule crosslinking induced AND and potentiated the effect of anti-IgE. CD62L- and CD11b crosslinking did not further potentiate this effect. CD49d crosslinking followed by IL-3 increased CD63 expression following anti-IgE. IL-3 potentiated the effect of fMLP on AND while adhesion molecule crosslinking did not. IL-33 had impact on PMD only when followed by adhesion molecule crosslinking but did not potentiate neither IgE-dependent nor IgE-independent degranulation. Our data indicate that sequential interactions between basophils, cytokines and adhesion molecule ligands have a decisive effect on basophil degranulation and that these interactions are operational for fine-tuning the activity of tissue dwelling basophils. These data should be considered when the effect of different pharmaceutical on basophil function is studied.
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Affiliation(s)
- Ladan Mansouri
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
- Sachs´ Children and Youth Hospital, Stockholm, Sweden
| | - Frida Kalm
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
- Sachs´ Children and Youth Hospital, Stockholm, Sweden
| | - Sophia Björkander
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
- Sachs´ Children and Youth Hospital, Stockholm, Sweden
| | - Joachim Lundahl
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
- Sachs´ Children and Youth Hospital, Stockholm, Sweden
| | - Anna Nopp
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
- Sachs´ Children and Youth Hospital, Stockholm, Sweden
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5
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Malani A, Aiyar J, Sant A, Kamran N, Mohanan M, Taneja S, Woda B, Zhao W, Acharya A. Comparing population-level humoral and cellular immunity to SARS-Cov-2 in Bangalore, India. Sci Rep 2024; 14:5758. [PMID: 38459035 PMCID: PMC10923858 DOI: 10.1038/s41598-024-54922-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 02/18/2024] [Indexed: 03/10/2024] Open
Abstract
Two types of immunity, humoral and cellular, offer protection against COVID. Humoral protection, contributed by circulating neutralizing antibodies, can provide immediate protection but decays more quickly than cellular immunity and can lose effectiveness in the face of mutation and drift in the SARS-CoV-2 spike protein. Therefore, population-level seroprevalence surveys used to estimate population-level immunity may underestimate the degree to which a population is protected against COVID. In early 2021, before India began its vaccination campaign, we tested for humoral and cellular immunity to SARS-Cov-2 in representative samples of slum and non-slum populations in Bangalore, India. We found that 29.7% of samples (unweighted) had IgG antibodies to the spike protein and 15.5% had neutralizing antibodies, but at up to 46% showed evidence of cellular immunity. We also find that prevalence of cellular immunity is significantly higher in slums than in non-slums. These findings suggest (1) that a significantly larger proportion of the population in Bangalore, India, had cellular immunity to SARS-CoV-2 than had humoral immunity, as measured by serological surveys, and (2) that low socio-economic status communities display higher frequency of cellular immunity, likely because of greater exposure to infection due to population density.
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Affiliation(s)
| | | | - Andrea Sant
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Manoj Mohanan
- Sanford School of Public Policy, Duke University, Durham, NC, USA
| | - Saloni Taneja
- University of Southern California, Los Angeles, CA, USA
| | - Bartek Woda
- University of Chicago, Chicago, IL, USA
- Amazon, Chicago, IL, USA
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Reddy KD, Bizymi N, Schweikert A, Ananth S, Lim CX, Lodge KM, Joannes A, Ubags N, van der Does AM, Cloonan SM, Mailleux A, Mansouri N, Reynaert NL, Heijink IH, Cuevas-Ocaña S. ERS International Congress 2023: highlights from the Basic and Translational Sciences Assembly. ERJ Open Res 2024; 10:00875-2023. [PMID: 38686182 PMCID: PMC11057505 DOI: 10.1183/23120541.00875-2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 05/02/2024] Open
Abstract
Early career members of Assembly 3 (Basic and Translational Sciences) of the European Respiratory Society (ERS) summarise the key messages discussed during six selected sessions that took place at the ERS International Congress 2023 in Milan, Italy. Aligned with the theme of the congress, the first session covered is "Micro- and macro-environments and respiratory health", which is followed by a summary of the "Scientific year in review" session. Next, recent advances in experimental methodologies and new technologies are discussed from the "Tissue modelling and remodelling" session and a summary provided of the translational science session, "What did you always want to know about omics analyses for clinical practice?", which was organised as part of the ERS Translational Science initiative's aims. The "Lost in translation: new insights into cell-to-cell crosstalk in lung disease" session highlighted how next-generation sequencing can be integrated with laboratory methods, and a final summary of studies is presented from the "From the transcriptome landscape to innovative preclinical models in lung diseases" session, which links the transcriptome landscape with innovative preclinical models. The wide range of topics covered in the selected sessions and the high quality of the research discussed demonstrate the strength of the basic and translational science being presented at the international respiratory conference organised by the ERS.
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Affiliation(s)
- Karosham Diren Reddy
- Epigenetics of Chronic Lung Disease Group, Forschungszentrum Borstel Leibniz Lungenzentrum, Borstel, Germany
- Division of Pediatric Pneumology and Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany
- These authors contributed equally
| | - Nikoleta Bizymi
- Laboratory of Molecular and Cellular Pneumonology, School of Medicine, University of Crete, Heraklion, Greece
- These authors contributed equally
| | - Anja Schweikert
- Department of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
- These authors contributed equally
| | - Sachin Ananth
- London North West University Healthcare NHS Trust, London, UK
- These authors contributed equally
| | - Clarice X. Lim
- Institute of Medical Genetics, Center for Pathobiochemistry and Genetics, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Lung Health, Clinic Penzing, Vienna, Austria
- These authors contributed equally
| | - Katharine M. Lodge
- National Heart and Lung Institute, Imperial College London, London, UK
- These authors contributed equally
| | - Audrey Joannes
- Université de Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) – UMR_S 1085, Rennes, France
| | - Niki Ubags
- Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Anne M. van der Does
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Suzanne M. Cloonan
- School of Medicine, Trinity Biosciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Arnaud Mailleux
- Université Paris Cité, Inserm, Physiopathologie et épidémiologie des maladies respiratoires, Paris, France
| | - Nahal Mansouri
- Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Niki L. Reynaert
- Department of Respiratory Medicine and School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Irene H. Heijink
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
| | - Sara Cuevas-Ocaña
- Biodiscovery Institute, Translational Medical Sciences, School of Medicine, University of Nottingham, Nottingham, UK
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7
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Moguem Soubgui AF, Ndeme Mboussi WS, Kojom Foko LP, Embolo Enyegue EL, Koanga Mogtomo ML. Serological surveillance reveals a high exposure to SARS-CoV-2 and altered immune response among COVID-19 unvaccinated Cameroonian individuals. PLOS GLOBAL PUBLIC HEALTH 2024; 4:e0002380. [PMID: 38346064 PMCID: PMC10861046 DOI: 10.1371/journal.pgph.0002380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 01/22/2024] [Indexed: 02/15/2024]
Abstract
Surveillance of COVID-19/SARS-CoV-2 dynamics is crucial to understanding natural history and providing insights into the population's exposure risk and specific susceptibilities. This study investigated the seroprevalence of SARS-CoV-2 antibodies, its predictors, and immunological status among unvaccinated patients in Cameroon. A multicentre cross-sectional study was conducted between January and September 2022 in the town of Douala. Patients were consecutively recruited, and data of interest were collected using a questionnaire. Blood samples were collected to determine Immunoglobin titres (IgM and IgG), interferon gamma (IFN- γ) and interleukin-6 (IL-6) by ELISA, and CD4+ cells by flow cytometry. A total of 342 patients aged 41.5 ± 13.9 years were included. Most participants (75.8%) were asymptomatic. The overall crude prevalence of IgM and IgG was 49.1% and 88.9%, respectively. After adjustment, the seroprevalence values were 51% for IgM and 93% for IgM. Ageusia and anosmia have displayed the highest positive predictive values (90.9% and 82.4%) and specificity (98.9% and 98.3%). The predictors of IgM seropositivity were being diabetic (aOR = 0.23, p = 0.01), frequently seeking healthcare (aOR = 1.97, p = 0.03), and diagnosed with ageusia (aOR = 20.63, p = 0.005), whereas those of IgG seropositivity included health facility (aOR = 0.15, p = 0.01), age of 40-50 years (aOR = 8.78, p = 0.01), married (aOR = 0.21, p = 0.02), fever (aOR = 0.08, p = 0.01), and ageusia (aOR = 0.08, p = 0.01). CD4+, IFN-γ, and IL-6 were impaired in seropositive individuals, with a confounding role of socio-demographic factors or comorbidities. Although the WHO declared the end of COVID-19 as a public health emergency, the findings of this study indicate the need for continuous surveillance to adequately control the disease in Cameroon.
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Affiliation(s)
- Arlette Flore Moguem Soubgui
- Faculty of Science, Department of Biochemistry, The University of Douala, Douala, Cameroon
- Centre de Recherche et d’Expertise en Biologie, Douala, Cameroon
| | - Wilfred Steve Ndeme Mboussi
- Faculty of Science, Department of Biochemistry, The University of Douala, Douala, Cameroon
- Centre de Recherche et d’Expertise en Biologie, Douala, Cameroon
| | - Loick Pradel Kojom Foko
- Centre de Recherche et d’Expertise en Biologie, Douala, Cameroon
- Department of Animal Biology, Faculty of Science, The University of Douala, Douala, Cameroon
| | - Elisée Libert Embolo Enyegue
- Center for Research on Health and Priority Diseases, Ministry of Scientific Research and Innovation, Yaoundé, Centre Region, Cameroon
| | - Martin Luther Koanga Mogtomo
- Faculty of Science, Department of Biochemistry, The University of Douala, Douala, Cameroon
- Centre de Recherche et d’Expertise en Biologie, Douala, Cameroon
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8
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Binayke A, Zaheer A, Vishwakarma S, Singh S, Sharma P, Chandwaskar R, Gosain M, Raghavan S, Murugesan DR, Kshetrapal P, Thiruvengadam R, Bhatnagar S, Pandey AK, Garg PK, Awasthi A. A quest for universal anti-SARS-CoV-2 T cell assay: systematic review, meta-analysis, and experimental validation. NPJ Vaccines 2024; 9:3. [PMID: 38167915 PMCID: PMC10762233 DOI: 10.1038/s41541-023-00794-9] [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: 07/02/2023] [Accepted: 12/08/2023] [Indexed: 01/05/2024] Open
Abstract
Measuring SARS-CoV-2-specific T cell responses is crucial to understanding an individual's immunity to COVID-19. However, high inter- and intra-assay variability make it difficult to define T cells as a correlate of protection against COVID-19. To address this, we performed systematic review and meta-analysis of 495 datasets from 94 original articles evaluating SARS-CoV-2-specific T cell responses using three assays - Activation Induced Marker (AIM), Intracellular Cytokine Staining (ICS), and Enzyme-Linked Immunospot (ELISPOT), and defined each assay's quantitative range. We validated these ranges using samples from 193 SARS-CoV-2-exposed individuals. Although IFNγ ELISPOT was the preferred assay, our experimental validation suggested that it under-represented the SARS-CoV-2-specific T cell repertoire. Our data indicate that a combination of AIM and ICS or FluoroSpot assay would better represent the frequency, polyfunctionality, and compartmentalization of the antigen-specific T cell responses. Taken together, our results contribute to defining the ranges of antigen-specific T cell assays and propose a choice of assay that can be employed to better understand the cellular immune response against viral diseases.
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Affiliation(s)
- Akshay Binayke
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
- Centre for Immunobiology and Immunotherapy, Translational Health Science and Technology Institute, Faridabad, India
- Jawaharlal Nehru University, New Delhi, India
| | - Aymaan Zaheer
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
| | - Siddhesh Vishwakarma
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
| | - Savita Singh
- Translational Health Science and Technology Institute, Faridabad, India
| | - Priyanka Sharma
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India
| | - Rucha Chandwaskar
- Department of Microbiology, AMITY University Rajasthan, Jaipur, India
| | - Mudita Gosain
- Translational Health Science and Technology Institute, Faridabad, India
| | | | | | | | - Ramachandran Thiruvengadam
- Translational Health Science and Technology Institute, Faridabad, India
- Pondicherry Institute of Medical Sciences, Puducherry, India
| | | | | | - Pramod Kumar Garg
- Translational Health Science and Technology Institute, Faridabad, India
- All India Institute of Medical Sciences, New Delhi, India
| | - Amit Awasthi
- Immunology Core Laboratory, Translational Health Science and Technology Institute, Faridabad, India.
- Centre for Immunobiology and Immunotherapy, Translational Health Science and Technology Institute, Faridabad, India.
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9
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Björkander S, Maier P, Kere M, Merid SK, Wirth L, Wiegel W, Ekström S, Kull I, Bergström A, Melén E, Mjösberg J, Tibbitt CA. Innate lymphoid cells type 2 and CD8 + T cells are perturbed in overweight and obese individuals with asthma. Allergy 2023; 78:2533-2536. [PMID: 36994759 DOI: 10.1111/all.15728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/31/2023]
Affiliation(s)
- Sophia Björkander
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Paul Maier
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Maura Kere
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Simon Kebede Merid
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Lorenz Wirth
- Mechanistic & Structural Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Whitney Wiegel
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Sandra Ekström
- Centre for Occupational and Environmental Medicine, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Inger Kull
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Anna Bergström
- Centre for Occupational and Environmental Medicine, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Jenny Mjösberg
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
- Clinical Lung- and Allergy Research Unit, Medical unit for Lung and Allergy Diseases, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Christopher Andrew Tibbitt
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
- Clinical Lung- and Allergy Research Unit, Medical unit for Lung and Allergy Diseases, Karolinska University Hospital Huddinge, Stockholm, Sweden
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Marty PK, Pathakumari B, Shah M, Keulen VP, Erskine CL, Block MS, Arias-Sanchez P, Escalante P, Peikert T. Convalescent Adaptive Immunity is Highly Heterogenous after SARS-CoV-2 Infection. RESEARCH SQUARE 2023:rs.3.rs-3222112. [PMID: 37674707 PMCID: PMC10479471 DOI: 10.21203/rs.3.rs-3222112/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Optimal detection strategies for effective convalescent immunity after SARS-CoV-2 infection and vaccination remain unclear. The objective of this study was to characterize convalescent immunity targeting the SARS-CoV-2 spike protein using a multiparametric approach. At the beginning of the pandemic, between April 23, 2020, to May 11, 2020, we recruited 30 COVID-19 unvaccinated convalescent donors and 7 unexposed asymptomatic donors. Peripheral blood mononuclear cells (PBMCs) were obtained from leukapheresis cones. The humoral immune response was assessed by measuring serum anti-SARS-CoV-2 spike S1 subunit IgG semiquantitative ELISA and T cell immunity against S1 and S2 subunits were studied by IFN-γ Enzyme-Linked Immune absorbent Spot (ELISpot), flow cytometric (FC) activation-induced marker (AIM) assays and the assessment of cytotoxic CD8+ T-cell function (in the subset of HLA-A2 positive patients). No single immunoassay was sufficient in identifying anti-spike convalescent immunity among all patients. There was no consistent correlation between adaptive humoral and cellular anti-spike responses. Our data indicate that the magnitude of anti-spike convalescent humoral and cellular immunity is highly heterogeneous and highlights the need for using multiple assays to comprehensively measure SARS-CoV-2 convalescent immunity. These observations might have implications for COVID-19 surveillance, and optimal vaccination strategies for emerging variants. Further studies are needed to determine the optimal assessment of adaptive humoral and cellular immunity following SARSCoV-2 infection, especially in the context of emerging variants and unclear vaccination schedules.
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11
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Mogensen I, Ekström S, Hallberg J, Georgelis A, Melén E, Bergström A, Kull I. Post COVID-19 symptoms are common, also among young adults in the general population. Sci Rep 2023; 13:11300. [PMID: 37438424 DOI: 10.1038/s41598-023-38315-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 07/06/2023] [Indexed: 07/14/2023] Open
Abstract
Post coronavirus disease-19 (post COVID-19) is mainly studied in clinical populations and less is known about post COVID-19 in a young general population. The aim of the study is to investigate the prevalence and symptoms of post COVID-19 and its potential risk factors in young adults. Participants from the Swedish population-based birth cohort BAMSE were included (n = 2022, mean age 26.5 years). Post COVID-19 was assessed through a questionnaire and defined as symptoms after confirmed COVID-19 (registry-based or self-reported positive test) lasting for ≥ 2 months. In total, 681 participants had had confirmed COVID-19. Among them, 112 (16.5%) fulfilled the definition of post COVID-19 (17.8% in females, 14.5% in males, p = 0.26). The most common post COVID-19 symptoms were altered smell and taste (68.8%), dyspnea (33.7%) and fatigue (30.4%). Overall, no major risk factors for post COVID-19 were identified except for being bedbound during COVID-19. However, asthma and rhinitis were associated with the post COVID-19 symptom dyspnea, migraine with altered smell and taste, and lower self-rated health with fatigue. In conclusion, post COVID-19 symptoms are common, also among young adults in the general population. Although not life-threatening, it could have a considerable impact on public health due to the high prevalence and long-term symptoms.
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Affiliation(s)
- Ida Mogensen
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Sandra Ekström
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.
- Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden.
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Jenny Hallberg
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Antonios Georgelis
- Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Anna Bergström
- Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Inger Kull
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
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12
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Ekström S, Andersson N, Kull I, Georgelis A, Ljungman PLS, Melén E, Bergström A. Changes in lifestyle, adiposity, and cardiometabolic markers among young adults in Sweden during the COVID-19 pandemic. BMC Public Health 2023; 23:1026. [PMID: 37259040 DOI: 10.1186/s12889-023-15998-w] [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: 02/01/2023] [Accepted: 05/26/2023] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic has impacted on public health in several ways. The aim of the study was to investigate changes in lifestyle, adiposity, and cardiometabolic markers among young adults in Sweden during the COVID-19 pandemic and their determinants. METHODS The study included 1 004 participants from the population-based birth cohort BAMSE. Anthropometrics, body composition (bioelectric impedance analyses), pulse, and blood pressure were measured before (December 2016-May 2019; mean age 22.6 years) and during (October 2020-June 2021; mean age 25.7 years) the COVID-19 pandemic. Lifestyle changes during the pandemic were assessed through a questionnaire. RESULTS All measures of adiposity (weight, BMI, body fat percentage, trunk fat percentage) and cardiometabolic markers (blood pressure, pulse) increased during the study period (e.g., body fat percentage by a median of + 0.8% in females, p < 0.001, and + 1.5% in males, p < 0.001). Male sex, non-Scandinavian ethnicity, BMI status (underweight and obesity), and changes in lifestyle factors, e.g., decreased physical activity during the pandemic, were associated with higher increase in BMI and/or adiposity. CONCLUSION Lifestyle factors, adiposity and cardiometabolic markers may have been adversely affected among young adults in Sweden during the COVID-19 pandemic compared with the preceding years. Targeted public health measures to reduce obesity and improve healthy lifestyle are important to prevent future non-communicable diseases.
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Affiliation(s)
- Sandra Ekström
- Center for Occupational and Environmental Medicine, Torsplan,Solnavägen 4, 113 65, Stockholm, Sweden.
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden.
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, 118 83, Stockholm, Sweden.
| | - Niklas Andersson
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
| | - Inger Kull
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, 118 83, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, 118 61, Stockholm, Sweden
| | - Antonios Georgelis
- Center for Occupational and Environmental Medicine, Torsplan,Solnavägen 4, 113 65, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
| | - Petter L S Ljungman
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
- Department of Cardiology, Danderyd University Hospital, 182 57, Danderyd, Sweden
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, 118 83, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, 118 61, Stockholm, Sweden
| | - Anna Bergström
- Center for Occupational and Environmental Medicine, Torsplan,Solnavägen 4, 113 65, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
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Ambient air pollution exposure linked to long COVID among young adults: a nested survey in a population-based cohort in Sweden. Lancet Reg Health Eur 2023; 28:100608. [PMID: 37131862 PMCID: PMC9989696 DOI: 10.1016/j.lanepe.2023.100608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 03/09/2023] Open
Abstract
Background Post COVID-19 conditions, also known as long COVID, are of public health concern, but little is known about their underlying risk factors. We aimed to investigate associations of air pollution exposure with long COVID among Swedish young adults. Methods We used data from the BAMSE (Children, Allergy, Environment, Stockholm, Epidemiology [in Swedish]) cohort. From October 2021 to February 2022 participants answered a web-questionnaire focusing on persistent symptoms following acute SARS-CoV-2 infection. Long COVID was defined as symptoms after confirmed infection with SARS-CoV-2 lasting for two months or longer. Ambient air pollution levels (particulate matter ≤2.5 μm [PM2.5], ≤10 μm [PM10], black carbon [BC] and nitrogen oxides [NOx]) at individual-level addresses were estimated using dispersion modelling. Findings A total of 753 participants with SARS-CoV-2 infection were included of whom 116 (15.4%) reported having long COVID. The most common symptoms were altered smell/taste (n = 80, 10.6%), dyspnea (n = 36, 4.8%) and fatigue (n = 34, 4.5%). Median annual PM2.5 exposure in 2019 (pre-pandemic) was 6.39 (interquartile range [IQR] 6.06-6.71) μg/m3. Adjusted Odds Ratios (95% confidence intervals) of PM2.5 per IQR increase were 1.28 (1.02-1.60) for long COVID, 1.65 (1.09-2.50) for dyspnea symptoms and 1.29 (0.97-1.70) for altered smell/taste. Positive associations were found for the other air pollutants and remained consistent across sensitivity analyses. Associations tended to be stronger among participants with asthma, and those having had COVID during 2020 (versus 2021). Interpretation Ambient long-term PM2.5 exposure may affect the risk of long COVID in young adults, supporting efforts for continuously improving air quality. Funding The study received funding from the Swedish Research Council (grant no. 2020-01886, 2022-06340), the Swedish Research Council for Health, Working life and Welfare (FORTE grant no. 2017-01146), the Swedish Heart-Lung Foundation, Karolinska Institute (no. 2022-01807) and Region Stockholm (ALF project for cohort and database maintenance).
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Ngalamika O, Lidenge SJ, Mukasine MC, Kawimbe M, Kamanzi P, Ngowi JR, Mwaiselage J, Tso FY. SARS-CoV-2-specific T cell and humoral immunity in individuals with and without HIV in an African population: a prospective cohort study. Int J Infect Dis 2023; 127:106-115. [PMID: 36516914 PMCID: PMC9741763 DOI: 10.1016/j.ijid.2022.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/07/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES To longitudinally compare SARS-CoV-2-specific T cell and humoral immune responses between convalescent individuals who are HIV-positive (HIV+) and HIV-negative (HIV-). METHODS We conducted enzyme-linked immunospots to determine the SARS-CoV-2-specific T cell responses to spike and nucleocapsid, membrane protein, and other open reading frame proteins (NMO), whereas an immunofluorescence assay was used to determine the humoral responses. Participants were sampled at baseline and after 8 weeks of follow-up. RESULTS Individuals who are HIV- had significantly more T cell responses to NMO and spike than individuals who are HIV+ at baseline, P-value = 0.026 and P-value = 0.029, respectively. At follow-up, T cell responses to NMO and spike in individuals who are HIV+ increased to levels comparable with individuals who are HIV-. T cell responses in the HIV- group significantly decreased from baseline levels at the time of follow-up (spike [P-value = 0.011] and NMO [P-value = 0.014]). A significantly higher number of individuals in the HIV+ group had an increase in T cell responses to spike (P-value = 0.01) and NMO (P-value = 0.026) during the follow-up period than the HIV- group. Antispike and antinucleocapsid antibody titers were high (1: 1280) and not significantly different between individuals who were HIV- and HIV+ at baseline. A significant decrease in antinucleocapsid titer was observed in the HIV- (P-value = 0.0001) and the HIV+ (P-value = 0.001) groups at follow-up. SARS-CoV-2 vaccination was more effective in boosting the T cell than antibody responses shortly after infection. CONCLUSION There is an impairment of SARS-CoV-2-specific T cell immunity in individuals who are HIV+ with advanced immunosuppression. SARS-CoV-2-specific T cell immune responses may be delayed in individuals who are HIV+, even in those on antiretroviral therapy. There is no difference in SARS-CoV-2-specific humoral immunity between individuals who are HIV- and HIV+.
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Affiliation(s)
- Owen Ngalamika
- Dermatology and Venereology Division, Department of Medicine, University Teaching Hospital, University of Zambia School of Medicine, Lusaka, Zambia,HHV-8 Molecular Virology Laboratory, University Teaching Hospital, Lusaka, Zambia,Corresponding author: Tel: +260961406928
| | - Salum J. Lidenge
- Ocean Road Cancer Institute, Dar-es-Salam, Tanzania,Muhimbili University of Health and Allied Sciences, Dar-es-Salam, Tanzania
| | | | - Musonda Kawimbe
- HHV-8 Molecular Virology Laboratory, University Teaching Hospital, Lusaka, Zambia
| | - Patrick Kamanzi
- Dermatology and Venereology Division, Department of Medicine, University Teaching Hospital, University of Zambia School of Medicine, Lusaka, Zambia
| | | | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar-es-Salam, Tanzania,Muhimbili University of Health and Allied Sciences, Dar-es-Salam, Tanzania
| | - For Yue Tso
- Department of Interdisciplinary Oncology, and The Stanley S Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, USA
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15
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Krifors A, Freyhult E, Rashid Teljebäck M, Wallin RPA, Winqvist O, Månsson E. Long-lasting T-cell response to SARS-CoV-2 antigens after vaccination-a prospective cohort study of HCWs working with COVID-19 patients. Infect Dis (Lond) 2023; 55:142-148. [PMID: 36369711 DOI: 10.1080/23744235.2022.2142662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Vaccination against SARS-CoV-2 reduces the risk of hospitalisation and death, but vaccine-induced IgG antibodies against the spike protein (IgG S) decline over time. Less is known about the nature of the vaccine-induced T-cell response to SARS-CoV-2 antigens. METHODS IgG antibodies against nucleocapsid protein (IgG N), IgG S, and T-cell response towards SARS-CoV-2 antigens were determined in samples taken between November 2020 and November 2021 from a cohort of healthcare workers at an Infectious Diseases Department. RT-PCR screening for SARS-CoV-2 was encouraged once every four weeks in addition to testing when symptomatic or identified through contact tracing. Vaccination data were collected at the end of the study. RESULTS At inclusion, T-cell response to SARS-CoV-2 antigens was found in 10/15 (66.7%) of participants with a previous/current COVID-19 infection and in 9/54 (16.7%) of participants with no prior/current history of COVID-19 infection. All participants with complete follow-up (n = 59) received two doses of a SARS-CoV-2 vaccine during the study. All participants demonstrated detectable IgG (S) antibodies at the end of the study, in median 278 days (IQR 112) after the second vaccine dose. All but four participants displayed T-cell responses towards SARS-CoV-2 antigens. IgG S antibody levels correlated with time since the second vaccine dose. In addition, previous COVID-19 infection and the strength of the S1 T-cell response correlated with IgG S antibody levels. However, no correlation was demonstrated between the strength of the T-cell response and time since the second vaccine dose. CONCLUSION COVID-19 vaccination induces robust T-cell responses that remain for at least nine months.
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Affiliation(s)
- Anders Krifors
- Department of Infectious Diseases, Västmanlands Hospital, Västerås, Sweden.,Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.,Centre of Clinical Research, Region Västmanland-Uppsala University, Västerås, Sweden
| | - Elisabeth Freyhult
- Department of Laboratory Medicine, Västmanlands Hospital, Västerås, Sweden
| | | | | | | | - Emeli Månsson
- Department of Infectious Diseases, Västmanlands Hospital, Västerås, Sweden.,Centre of Clinical Research, Region Västmanland-Uppsala University, Västerås, Sweden.,Faculty of Medicine and Health, Örebro University, Örebro, Sweden
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16
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Krogsgaard LW, Espenhain L, Tribler S, Sværke Jørgensen C, Hansen CH, Møller FT, Glode Helmuth I, Sönksen UW, Vangsted AM, Ullum H, Ethelberg S. Seroprevalence of SARS-CoV-2 Antibodies in Denmark: Results of Two Nationwide Population-Based Surveys, February and May 2021. Infect Drug Resist 2023; 16:301-312. [PMID: 36683911 PMCID: PMC9851711 DOI: 10.2147/idr.s383491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/14/2022] [Indexed: 01/15/2023] Open
Abstract
Background Seroprevalence studies can be used to measure the progression of national COVID-19 epidemics. The Danish National Seroprevalence Survey of SARS-CoV-2 infections (DSS) was conducted as five separate surveys between May 2020 and May 2021. Here, we present results from the two last surveys conducted in February and May 2021. Methods Persons aged 12 or older were randomly selected from the Danish Population Register and those having received COVID-19 vaccination subsequently excluded. Invitations to have blood drawn in local test centers were sent by mail. Samples were analyzed for whole Immunoglobulin by ELISA. Seroprevalence was estimated by sex, age and geography. Comparisons to vaccination uptake and RT-PCR test results were made. Results In February 2021, we found detectable antibodies in 7.2% (95% CI: 6.3-7.9%) of the invited participants (participation rate 25%) and in May 2021 in 8.6% (95% CI: 7.6-9.5%) of the invited (participation rate: 14%). Seroprevalence did not differ by sex, but by age group, generally being higher among the <50 than 50+ year-olds. In May 2021, levels of seroprevalence varied from an estimated 13% (95% CI: 12-15%) in the capital to 5.2% (95% CI: 3.4-7.4%) in rural areas. Combining seroprevalence results with vaccine coverage, estimates of protection against infection in May 2021 varied from 95% among 65+ year-olds down to 10-20% among 12-40 year-olds. In March-May 2021, an estimated 80% of all community SARS-CoV-2 infections were diagnosed by RT-PCR and captured by surveillance. Conclusion Seroprevalence estimates doubled during the 2020-21 winter wave of SARS-CoV-2 infections and then stabilized as vaccinations were rolled out. The epidemic affected large cities and younger people the most. Denmark saw comparatively low infections rates, but high test coverage; an estimated four out of five infections were detected by RT-PCR in March-May 2021.
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Affiliation(s)
- Lene Wulff Krogsgaard
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Laura Espenhain
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Siri Tribler
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | | | - Christian Holm Hansen
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Frederik Trier Møller
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Ida Glode Helmuth
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Ute Wolff Sönksen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark,TestCentre Denmark, Statens Serum Institut, Copenhagen, Denmark
| | | | - Henrik Ullum
- Division of Infectious Disease Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - Steen Ethelberg
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark,Department of Public Health, University of Copenhagen, Copenhagen, Denmark,Correspondence: Steen Ethelberg, Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, 5 Artillerivej, 2300 Copenhagen, Denmark, Tel +45 3268 3545, Email
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17
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Silva MJA, Ribeiro LR, Lima KVB, Lima LNGC. Adaptive immunity to SARS-CoV-2 infection: A systematic review. Front Immunol 2022; 13:1001198. [PMID: 36300105 PMCID: PMC9589156 DOI: 10.3389/fimmu.2022.1001198] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 09/26/2022] [Indexed: 01/08/2023] Open
Abstract
Background There is evidence that the adaptive or acquired immune system is one of the crucial variables in differentiating the course of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This work aimed to analyze the immunopathological aspects of adaptive immunity that are involved in the progression of this disease. Methods This is a systematic review based on articles that included experimental evidence from in vitro assays, cohort studies, reviews, cross-sectional and case-control studies from PubMed, SciELO, MEDLINE, and Lilacs databases in English, Portuguese, or Spanish between January 2020 and July 2022. Results Fifty-six articles were finalized for this review. CD4+ T cells were the most resolutive in the health-disease process compared with B cells and CD8+ T lymphocytes. The predominant subpopulations of T helper lymphocytes (Th) in critically ill patients are Th1, Th2, Th17 (without their main characteristics) and regulatory T cells (Treg), while in mild cases there is an influx of Th1, Th2, Th17 and follicular T helper cells (Tfh). These cells are responsible for the secretion of cytokines, including interleukin (IL) - 6, IL-4, IL-10, IL-7, IL-22, IL-21, IL-15, IL-1α, IL-23, IL-5, IL-13, IL-2, IL-17, tumor necrosis factor alpha (TNF-α), CXC motivating ligand (CXCL) 8, CXCL9 and tumor growth factor beta (TGF-β), with the abovementioned first 8 inflammatory mediators related to clinical benefits, while the others to a poor prognosis. Some CD8+ T lymphocyte markers are associated with the severity of the disease, such as human leukocyte antigen (HLA-DR) and programmed cell death protein 1 (PD-1). Among the antibodies produced by SARS-CoV-2, Immunoglobulin (Ig) A stood out due to its potent release associated with a more severe clinical form. Conclusions It is concluded that through this study it is possible to have a brief overview of the main immunological biomarkers and their function during SARS-CoV-2 infection in particular cell types. In critically ill individuals, adaptive immunity is varied, aberrantly compromised, and late. In particular, the T-cell response is also an essential and necessary component in immunological memory and therefore should be addressed in vaccine formulation strategies.
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Affiliation(s)
- Marcos Jessé Abrahão Silva
- Graduate Program in Epidemiology and Health Surveillance (PPGEVS), Bacteriology and Mycology Section (SABMI), Evandro Chagas Institute (IEC), Ananindeua, Brazil
- Bacteriology and Mycology Section (SABMI), Evandro Chagas Institute (IEC), Ananindeua, Brazil
- *Correspondence: Marcos Jessé Abrahão Silva,
| | - Layana Rufino Ribeiro
- Bacteriology and Mycology Section (SABMI), Evandro Chagas Institute (IEC), Ananindeua, Brazil
| | | | - Luana Nepomuceno Gondim Costa Lima
- Graduate Program in Epidemiology and Health Surveillance (PPGEVS), Bacteriology and Mycology Section (SABMI), Evandro Chagas Institute (IEC), Ananindeua, Brazil
- Bacteriology and Mycology Section (SABMI), Evandro Chagas Institute (IEC), Ananindeua, Brazil
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Ameratunga R, Woon ST, Steele R, Lehnert K, Leung E, Brooks AES. Critical role of diagnostic SARS-CoV-2 T cell assays for immunodeficient patients. J Clin Pathol 2022; 75:793-797. [PMID: 36216482 DOI: 10.1136/jcp-2022-208305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 09/08/2022] [Indexed: 11/04/2022]
Abstract
After almost 3 years of intense study, the immunological basis of COVID-19 is better understood. Patients who suffer severe disease have a chaotic, destructive immune response. Many patients with severe COVID-19 produce high titres of non-neutralising antibodies, which are unable to sterilise the infection. In contrast, there is increasing evidence that a rapid, balanced cellular immune response is required to eliminate the virus and mitigate disease severity. In the longer term, memory T cell responses, following infection or vaccination, play a critical role in protection against SARS-CoV-2.Given the pivotal role of cellular immunity in the response to COVID-19, diagnostic T cell assays for SARS-CoV-2 may be of particular value for immunodeficient patients. A diagnostic SARS-CoV-2 T cell assay would be of utility for immunocompromised patients who are unable to produce antibodies or have passively acquired antibodies from subcutaneous or intravenous immunoglobulin (SCIG/IVIG) replacement. In many antibody-deficient patients, cellular responses are preserved. SARS-CoV-2 T cell assays may identify breakthrough infections if reverse transcriptase quantitative PCR (RT-qPCR) or rapid antigen tests (RATs) are not undertaken during the window of viral shedding. In addition to utility in patients with immunodeficiency, memory T cell responses could also identify chronically symptomatic patients with long COVID-19 who were infected early in the pandemic. These individuals may have been infected before the availability of reliable RT-qPCR and RAT tests and their antibodies may have waned. T cell responses to SARS-CoV-2 have greater durability than antibodies and can also distinguish patients with infection from vaccinated individuals.
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Affiliation(s)
- Rohan Ameratunga
- Department of Virology and Immunology, Auckland City Hospital, Auckland, New Zealand .,Department of Clinical Immunology, Auckland City Hospital, Auckland, New Zealand
| | - See-Tarn Woon
- Department of Virology and Immunology, Auckland City Hospital, Auckland, New Zealand
| | - Richard Steele
- Department of Clinical Immunology, Wellington Hospital, Wellington, New Zealand
| | - Klaus Lehnert
- Centre for brain Research, University of Auckland, Auckland, New Zealand
| | - Euphemia Leung
- Cancer Research, Faculty of Medical and health Sciences, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Anna E S Brooks
- School of Biological Sciences, The University of Auckland, Auckland, New Zealand
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19
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Govender M, Hopkins FR, Göransson R, Svanberg C, Shankar EM, Hjorth M, Nilsdotter-Augustinsson Å, Sjöwall J, Nyström S, Larsson M. T cell perturbations persist for at least 6 months following hospitalization for COVID-19. Front Immunol 2022; 13:931039. [PMID: 36003367 PMCID: PMC9393525 DOI: 10.3389/fimmu.2022.931039] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/14/2022] [Indexed: 01/08/2023] Open
Abstract
COVID-19 is being extensively studied, and much remains unknown regarding the long-term consequences of the disease on immune cells. The different arms of the immune system are interlinked, with humoral responses and the production of high-affinity antibodies being largely dependent on T cell immunity. Here, we longitudinally explored the effect COVID-19 has on T cell populations and the virus-specific T cells, as well as neutralizing antibody responses, for 6-7 months following hospitalization. The CD8+ TEMRA and exhausted CD57+ CD8+ T cells were markedly affected with elevated levels that lasted long into convalescence. Further, markers associated with T cell activation were upregulated at inclusion, and in the case of CD69+ CD4+ T cells this lasted all through the study duration. The levels of T cells expressing negative immune checkpoint molecules were increased in COVID-19 patients and sustained for a prolonged duration following recovery. Within 2-3 weeks after symptom onset, all COVID-19 patients developed anti-nucleocapsid IgG and spike-neutralizing IgG as well as SARS-CoV-2-specific T cell responses. In addition, we found alterations in follicular T helper (TFH) cell populations, such as enhanced TFH-TH2 following recovery from COVID-19. Our study revealed significant and long-term alterations in T cell populations and key events associated with COVID-19 pathogenesis.
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Affiliation(s)
- Melissa Govender
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Francis R. Hopkins
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Robin Göransson
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- Department of Clinical Immunology and Transfusion Medicine, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Cecilia Svanberg
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Esaki M. Shankar
- Infection Biology, Department of Life Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Maria Hjorth
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- Department of Clinical Immunology and Transfusion Medicine, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Åsa Nilsdotter-Augustinsson
- Divison of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Johanna Sjöwall
- Divison of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Sofia Nyström
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- Department of Clinical Immunology and Transfusion Medicine, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Marie Larsson
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- *Correspondence: Marie Larsson,
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20
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Ameratunga R, Woon ST, Steele R, Lehnert K, Leung E, Brooks AES. Severe COVID-19 is a T cell immune dysregulatory disorder triggered by SARS-CoV-2. Expert Rev Clin Immunol 2022; 18:557-565. [PMID: 35510369 DOI: 10.1080/1744666x.2022.2074403] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION COVID-19 has had a calamitous impact on the global community. Apart from at least 6M deaths, hundreds of millions have been infected and a much greater number have been plunged into poverty. Vaccines have been effective but financial and logistical challenges have hampered their rapid global deployment. Vaccine disparities have allowed the emergence of new SARS-CoV-2 variants including delta and omicron, perpetuating the pandemic. AREAS COVERED The immunological response to SARS-CoV-2 has been the subject of intense study and is now better understood. Many of the clinical manifestations of severe disease are a consequence of immune dysregulation triggered by the virus. This may explain the lack of efficacy of antiviral treatments such as convalescent plasma infusions, given later in the disease. EXPERT OPINION T cells play a crucial role in both the outcome of COVID-19 as well as the protective response to vaccines. Vaccines do not prevent infection but reduce the risk of a chaotic and destructive cellular immune response to the virus. Severe COVID-19 should be considered a virus-induced secondary immune dysregulatory disorder of cellular immunity, with broad host susceptibility. This perspective of COVID-19 will lead to better diagnostic tests, vaccines and therapeutic strategies in the future.
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Affiliation(s)
- Rohan Ameratunga
- Department of Clinical immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland New Zealand.,Department of Virology and Immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand.,Department of Molecular Medicine and Pathology, School of Medicine, Faculty of Medical and Health Sciences, University of Auckland
| | - See-Tarn Woon
- Department of Virology and Immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand.,Department of Molecular Medicine and Pathology, School of Medicine, Faculty of Medical and Health Sciences, University of Auckland
| | - Richard Steele
- Department of Virology and Immunology, Auckland Hospital, Park Rd, Grafton 1010, Auckland, New Zealand.,Department of Respiratory Medicine, Wellington Hospital, Wellington, New Zealand
| | - Klaus Lehnert
- School of Biological Sciences, University of Auckland, Auckland, New Zealand.,Maurice Wilkins Centre, School of Biological Sciences, University of Auckland, Symonds St, Auckland, New Zealand Wilkins Centre, University of Auckland
| | - Euphemia Leung
- Maurice Wilkins Centre, School of Biological Sciences, University of Auckland, Symonds St, Auckland, New Zealand Wilkins Centre, University of Auckland.,Auckland Cancer Society Research Centre, School of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Anna E S Brooks
- School of Biological Sciences, University of Auckland, Auckland, New Zealand.,Maurice Wilkins Centre, School of Biological Sciences, University of Auckland, Symonds St, Auckland, New Zealand Wilkins Centre, University of Auckland
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21
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Mogensen I, Hallberg J, Björkander S, Du L, Zuo F, Hammarström L, Pan-Hammarström Q, Ekström S, Georgelis A, Palmberg L, Janson C, Bergström A, Melén E, Kull I. Lung function before and after COVID-19 in young adults: A population-based study. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2022; 1:37-42. [PMID: 36647376 PMCID: PMC8966371 DOI: 10.1016/j.jacig.2022.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/14/2022] [Accepted: 03/04/2022] [Indexed: 01/19/2023]
Abstract
Background There is limited evidence on the long-term impact of mild-to-moderate coronavirus disease 2019 (COVID-19) on lung function among young adults. Objectives We aimed to assess whether COVID-19 has a negative impact on lung function in young adults and whether asthma, allergic sensitization, or use of inhaled corticosteroids (ICSs) modifies a potential association. Methods Participants from the population-based BAMSE (Barn, Allergi, Miljö, Stockholm, Epidemiologi) cohort with spirometry assessed before (2016-2019) and after onset of the COVID-19 pandemic (2020-2021) were included. Serum levels of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptor-binding domain-specific IgG, IgM, and/or IgA (determined with ELISA) defined seropositivity. Mean change in lung function (ie, change in FEV1, forced vital capacity [FVC], and FEV1/FVC ratio expressed as percent of predicted [pp]) from before to after onset of the pandemic were compared between the seronegative and seropositive participants. In seropositive participants, change in lung function was assessed in relation to allergic sensitization and self-reported ICS use. Results Of the 853 included participants, 29% (n = 243) were seropositive. There were no differences in change in lung function between the seronegative and seropositive participants (for mean change in FEV1 pp [SD], seropositivity = 0.87% [4.79%] and seronegativity = 1.03% (4.76%) [P = .66] for difference using a t test; FVC pp (SD), seropositivity = 1.34% (4.44%) and seronegativity = 1.29% (4.27%) [P = .87]; and for FEV1/FVC pp (SD), seropositivity = -0.25% (3.13%) and seronegativity = -0.13% (3.15%) [P = .61]). Similar results were observed among participants with asthma (n = 147 [17%]). Among seropositive participants, allergic sensitization or ICS use did not influence lung function. Conclusion We found no evidence of mild-to-moderate COVID-19 affecting lung function long term in a population-based cohort of young adults. Moreover, neither asthma nor allergic sensitization nor ICS use affected the results.
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Key Words
- AU, Arbitrary unit
- Asthma
- BAMSE, Barn, Allergi, Miljö, Stockholm, Epidemiologi
- BMI, Body mass index
- COVID-19
- COVID-19, Coronavirus disease 2019
- FVC, Forced vital capacity
- ICS, Inhaled corticosteroid
- Lung function
- SARS-CoV-2, Severe acute respiratory syndrome coronavirus 2
- pp, Percent of predicted
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Affiliation(s)
- Ida Mogensen
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Jenny Hallberg
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Sophia Björkander
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Likun Du
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Fanglei Zuo
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Lennart Hammarström
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | | | - Sandra Ekström
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Antonios Georgelis
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lena Palmberg
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Christer Janson
- Department of Medical Sciences: Respiratory, Allergy, and Sleep Research, Uppsala University, Uppsala, Sweden
| | - Anna Bergström
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Inger Kull
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
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22
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Moritz D, Krifors A, Freyhult E, Månsson E. Seroprevalence and T-cell response in 32 children 10 months after COVID-19. Acta Paediatr 2022; 111:1042-1043. [PMID: 35150457 PMCID: PMC9111266 DOI: 10.1111/apa.16287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/16/2022] [Accepted: 02/10/2022] [Indexed: 11/28/2022]
Affiliation(s)
- David Moritz
- Department of Paediatrics Uppsala University Uppsala Sweden
| | - Anders Krifors
- Department of Infectious Diseases Västmanlands Hospital Västerås Sweden
- Centre of Clinical Research Region Västmanland Uppsala University Uppsala Sweden
- Department of Physiology and Pharmacology Karolinska Institutet Stockholm Sweden
| | | | - Emeli Månsson
- Department of Infectious Diseases Västmanlands Hospital Västerås Sweden
- Centre of Clinical Research Region Västmanland Uppsala University Uppsala Sweden
- School of Medical Sciences Örebro University Örebro Sweden
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23
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Yu Z, Bellander T, Bergström A, Dillner J, Eneroth K, Engardt M, Georgelis A, Kull I, Ljungman P, Pershagen G, Stafoggia M, Melén E, Gruzieva O. Association of Short-term Air Pollution Exposure With SARS-CoV-2 Infection Among Young Adults in Sweden. JAMA Netw Open 2022; 5:e228109. [PMID: 35442452 PMCID: PMC9021914 DOI: 10.1001/jamanetworkopen.2022.8109] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IMPORTANCE Mounting ecological evidence shows an association between short-term air pollution exposure and COVID-19, yet no study has examined this association on an individual level. OBJECTIVE To estimate the association between short-term exposure to ambient air pollution and SARS-CoV-2 infection among Swedish young adults. DESIGN, SETTING, AND PARTICIPANTS This time-stratified case-crossover study linked the prospective BAMSE (Children, Allergy Milieu, Stockholm, Epidemiology [in Swedish]) birth cohort to the Swedish national infectious disease registry to identify cases with positive results for SARS-CoV-2 polymerase chain reaction (PCR) testing from May 5, 2020, to March 31, 2021. Case day was defined as the date of the PCR test, whereas the dates with the same day of the week within the same calendar month and year were selected as control days. Data analysis was conducted from September 1 to December 31, 2021. EXPOSURES Daily air pollutant levels (particulate matter with diameter ≤2.5 μm [PM2.5], particulate matter with diameter ≤10 μm [PM10], black carbon [BC], and nitrogen oxides [NOx]) at residential addresses were estimated using dispersion models with high spatiotemporal resolution. MAIN OUTCOMES AND MEASURES Confirmed SARS-CoV-2 infection among participants within the BAMSE cohort. Distributed-lag models combined with conditional logistic regression models were used to estimate the association. RESULTS A total of 425 cases were identified, of whom 229 (53.9%) were women, and the median age was 25.6 (IQR, 24.9-26.3) years. The median exposure level for PM2.5 was 4.4 [IQR, 2.6-6.8] μg/m3 on case days; for PM10, 7.7 [IQR, 4.6-11.3] μg/m3 on case days; for BC, 0.3 [IQR, 0.2-0.5] μg/m3 on case days; and for NOx, 8.2 [5.6-14.1] μg/m3 on case days. Median exposure levels on control days were 3.8 [IQR, 2.4-5.9] μg/m3 for PM2.5, 6.6 [IQR, 4.5-10.4] μg/m3 for PM10, 0.2 [IQR, 0.2-0.4] μg/m3 for BC, and 7.7 [IQR, 5.3-12.8] μg/m3 for NOx. Each IQR increase in short-term exposure to PM2.5 on lag 2 was associated with a relative increase in positive results of SARS-CoV-2 PCR testing of 6.8% (95% CI, 2.1%-11.8%); exposure to PM10 on lag 2, 6.9% (95% CI, 2.0%-12.1%); and exposure to BC on lag 1, 5.8% (95% CI, 0.3%-11.6%). These findings were not associated with NOx, nor were they modified by sex, smoking, or having asthma, overweight, or self-reported COVID-19 respiratory symptoms. CONCLUSIONS AND RELEVANCE The findings of this case-crossover study of Swedish young adults suggest that short-term exposure to particulate matter and BC was associated with increased risk of positive PRC test results for SARS-CoV-2, supporting the broad public health benefits of reducing ambient air pollution levels.
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Affiliation(s)
- Zhebin Yu
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tom Bellander
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Anna Bergström
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Joakim Dillner
- Medical Diagnostics Karolinska, Karolinska University Hospital, Stockholm, Sweden
| | - Kristina Eneroth
- SLB-analys, Environment and Health Administration, Stockholm, Sweden
| | - Magnuz Engardt
- SLB-analys, Environment and Health Administration, Stockholm, Sweden
| | - Antonios Georgelis
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Inger Kull
- Department of Clinical Sciences and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden
- Department of Pediatrics, Sachs Children’s Hospital, Stockholm, Sweden
| | - Petter Ljungman
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Cardiology, Danderyd Hospital, Stockholm, Sweden
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Massimo Stafoggia
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Erik Melén
- Department of Clinical Sciences and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden
- Department of Pediatrics, Sachs Children’s Hospital, Stockholm, Sweden
| | - Olena Gruzieva
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
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24
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SARS-CoV-2 seroprevalence and determinants of infection in young adults: A population-based seroepidemiological study. Public Health 2022; 207:54-61. [PMID: 35490440 PMCID: PMC8940565 DOI: 10.1016/j.puhe.2022.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/18/2022] [Accepted: 03/15/2022] [Indexed: 11/24/2022]
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