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Montmaneix-Engels F, Dimeglio C, Staes L, Da Silva I, Porcheron M, Jougla I, Hérin F, Izopet J. Study of the cellular and humoral immune responses to SARS-CoV-2 vaccination. Heliyon 2024; 10:e29116. [PMID: 38601689 PMCID: PMC11004869 DOI: 10.1016/j.heliyon.2024.e29116] [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: 01/11/2024] [Revised: 03/29/2024] [Accepted: 04/01/2024] [Indexed: 04/12/2024] Open
Abstract
Our understanding of cellular immunity in response to COVID-19 infection or vaccination is limited because of less commonly used techniques. We investigated both the cellular and humoral immune responses before and after the administration of a third dose of the SARS-CoV-2 vaccine among a group of healthcare workers. Cellular immunity was evaluated using the VIDAS interferon-gamma (IFNγ) RUO test, which enables automated measurement of IFNγ levels after stimulating peripheral blood lymphocytes. Booster doses significantly enhanced both cellular and humoral immunity. Concerning cellular response, the booster dose increased the percentage of positive IFNγ release assay (IGRA) results but no difference in IFNγ release was found. The cellular response was not associated with protection against SARS-CoV-2 infection. Interestingly, vaccinated and infected healthcare workers exhibited the highest levels of anti-spike and neutralizing antibodies. In conclusion, the IGRA is a simple method for measuring cellular immune responses after vaccination. However, its usefulness as a complement to the study of humoral responses is yet to be demonstrated in future research.
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Affiliation(s)
- Faustine Montmaneix-Engels
- INSERM UMR1291-CNRS UMR5051-University Toulouse III, Toulouse Institute for Infectious and Inflammatory Diseases, 31300, Toulouse, France
- Toulouse III Paul Sabatier University, 31062, Toulouse, France
| | - Chloé Dimeglio
- INSERM UMR1291-CNRS UMR5051-University Toulouse III, Toulouse Institute for Infectious and Inflammatory Diseases, 31300, Toulouse, France
- CHU Toulouse, Purpan Hospital, Virology Laboratory, 31300, Toulouse, France
| | - Laeticia Staes
- CHU Toulouse, Purpan Hospital, Virology Laboratory, 31300, Toulouse, France
| | - Isabelle Da Silva
- CHU Toulouse, Purpan Hospital, Virology Laboratory, 31300, Toulouse, France
| | - Marion Porcheron
- CHU Toulouse, Purpan Hospital, Virology Laboratory, 31300, Toulouse, France
| | - Isabelle Jougla
- Occupational Diseases Department, Toulouse University Hospital, 31000, Toulouse, France
| | - Fabrice Hérin
- Occupational Diseases Department, Toulouse University Hospital, 31000, Toulouse, France
- UMR1295, Joint Research Unit INSERM- University Toulouse III Paul Sabatier, Centre for Epidemiology and Research in Population Health Unit (CERPOP), 31000, Toulouse, France
| | - Jacques Izopet
- INSERM UMR1291-CNRS UMR5051-University Toulouse III, Toulouse Institute for Infectious and Inflammatory Diseases, 31300, Toulouse, France
- Toulouse III Paul Sabatier University, 31062, Toulouse, France
- CHU Toulouse, Purpan Hospital, Virology Laboratory, 31300, Toulouse, France
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Holdenrieder S, Dos Santos Ferreira CE, Izopet J, Theel ES, Wieser A. Clinical and laboratory considerations: determining an antibody-based composite correlate of risk for reinfection with SARS-CoV-2 or severe COVID-19. Front Public Health 2023; 11:1290402. [PMID: 38222091 PMCID: PMC10788057 DOI: 10.3389/fpubh.2023.1290402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/30/2023] [Indexed: 01/16/2024] Open
Abstract
Much of the global population now has some level of adaptive immunity to SARS-CoV-2 induced by exposure to the virus (natural infection), vaccination, or a combination of both (hybrid immunity). Key questions that subsequently arise relate to the duration and the level of protection an individual might expect based on their infection and vaccination history. A multi-component composite correlate of risk (CoR) could inform individuals and stakeholders about protection and aid decision making. This perspective evaluates the various elements that need to be accommodated in the development of an antibody-based composite CoR for reinfection with SARS-CoV-2 or development of severe COVID-19, including variation in exposure dose, transmission route, viral genetic variation, patient factors, and vaccination status. We provide an overview of antibody dynamics to aid exploration of the specifics of SARS-CoV-2 antibody testing. We further discuss anti-SARS-CoV-2 immunoassays, sample matrices, testing formats, frequency of sampling and the optimal time point for such sampling. While the development of a composite CoR is challenging, we provide our recommendations for each of these key areas and highlight areas that require further work to be undertaken.
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Affiliation(s)
- Stefan Holdenrieder
- Institute of Laboratory Medicine, German Heart Centre Munich, Technical University Munich, Munich, Germany
| | | | - Jacques Izopet
- Laboratory of Virology, Toulouse University Hospital and INFINITY Toulouse Institute for Infections and Inflammatory Diseases, INSERM UMR 1291 CNRS UMR 5051, University Toulouse III, Toulouse, France
| | - Elitza S. Theel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States
| | - Andreas Wieser
- Division of Infectious Diseases and Tropical Medicine, University Hospital, LMU Munich, Munich, Germany
- German Centre for Infection Research (DZIF), Munich, Germany
- Faculty of Medicine, Max Von Pettenkofer Institute, LMU Munich, Munich, Germany
- Immunology, Infection and Pandemic Research, Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Munich, Germany
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Mathew M, Sebastian J, Doddaiah N, Thomas A, Narayanappa S. Clinico-epidemiological profile and outcome of infected health care workers during the three consecutive waves of COVID-19 pandemic: a longitudinal cohort study. Ther Adv Vaccines Immunother 2023; 11:25151355231181744. [PMID: 37362156 PMCID: PMC10285439 DOI: 10.1177/25151355231181744] [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: 12/23/2022] [Accepted: 05/15/2023] [Indexed: 06/28/2023] Open
Abstract
Background Health care workers are considered as high-risk population, who deal with many unknown, undiagnosed, and subclinical infectious diseases in their daily life. Currently, the COVID-19 pandemic posed as an add-on burden for these frontline workers in all aspects. Although, many adverse physical and mental effects of pandemic among health care workers (HCWs) were discussed worldwide, a long-term study for delayed complications needed to be explored. Aim The study evaluates and compares three waves of the pandemic in various aspects such as the incidence, prevalence, severity, risk factors, and variations in the pattern of COVID-19 infection, impact of vaccination, and post-infection complications among the HCWs. Methodology A longitudinal observational study was carried out over a period of 2 years and another 6 months for follow-up. The study included all HCWs who tested positive in any one wave of COVID-19 pandemic with any one of the confirmed COVID-19 test. Each COVID-19-affected HCW was followed up through telephone calls and direct interviews conducted at the study site. Admission details and other background details of the study population were collected from the hospital records. Results A total of 968 HCWs were COVID-19 positive in any of the three waves, and highest incidence (53.00%) was caused by the Omicron variant. High severity and hospitalization was observed in the first wave (no vaccination) and fully immunized personnel were found to be out of danger of being hospitalized during all succeeding waves (chi-square value: 87.04, p < 0.05). Predictors such as female gender, occupational exposure, and comorbid status were identified as possible risk factors for infection. A total of 70 HCWs reported with 104 complications, of which chronic diseases such as new onset of diabetes (n = 3), cardiovascular events (n = 8), worsening of preexisting comorbidities (n = 8), etc. were found out. Conclusions This study proves the benefit of being immunized rather than the risk of being infected. This study documents that immunization impacted complication and hospitalization rates of COVID-19 infection. This evidence may help in tackling vaccine hesitancy across the nations.
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Affiliation(s)
- Merrin Mathew
- Department of Pharmacy Practice, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, India
| | - Juny Sebastian
- Department of Pharmacy Practice, College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | | | - Anmaria Thomas
- Department of Pharmacy Practice, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, India
| | - Sinchana Narayanappa
- Department of Radio Diagnosis, JSS Medical College, JSS Academy of Higher Education and Research, Mysuru, India
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Migueres M, Chapuy‐Regaud S, Miédougé M, Jamme T, Lougarre C, Da Silva I, Pucelle M, Staes L, Porcheron M, Diméglio C, Izopet J. Current immunoassays and detection of antibodies elicited by Omicron SARS-CoV-2 infection. J Med Virol 2023; 95:e28200. [PMID: 36207814 PMCID: PMC9874650 DOI: 10.1002/jmv.28200] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/12/2022] [Accepted: 10/03/2022] [Indexed: 01/27/2023]
Abstract
The present study aimed to determine whether current commercial immunoassays are adequate for detecting anti-Omicron antibodies. We analyzed the anti-SARS-CoV-2 antibody response of 23 unvaccinated individuals 1-2 months after an Omicron infection. All blood samples were tested with a live virus neutralization assay using a clinical Omicron BA.1 strain and four commercial SARS-CoV-2 immunoassays. We assessed three anti-Spike immunoassays (SARS-CoV-2 IgG II Quant [Abbott S], Wantaï anti-SARS-CoV-2 antibody ELISA [Wantaï], Elecsys Anti-SARS-CoV-2 S assay [Roche]) and one anti-Nucleocapsid immunoassay (Abbott SARS-CoV-2 IgG assay [Abbott N]). Omicron neutralizing antibodies were detected in all samples with the live virus neutralization assay. The detection rate of the Abbott S, Wantai, Roche, and Abbott N immunoassays were 65.2%, 69.6%, 86.9%, and 91.3%, respectively. The sensitivities of Abbott S and Wantai immunoassays were significantly lower than that of the live virus neutralization assay (p = 0.004, p = 0.009; Fisher's exact test). Antibody concentrations obtained with anti-S immunoassays were correlated with Omicron neutralizing antibody concentrations. These data provide clinical evidence of the loss of performance of some commercial immunoassays to detect antibodies elicited by Omicron infections. It highlights the need to optimize these assays by adapting antigens to the circulating SARS-CoV-2 strains.
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Affiliation(s)
- Marion Migueres
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance,Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity) INSERM UMR1291 ‐ CNRS UMR5051ToulouseFrance,Université Toulouse III Paul‐SabatierToulouseFrance
| | - Sabine Chapuy‐Regaud
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance,Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity) INSERM UMR1291 ‐ CNRS UMR5051ToulouseFrance,Université Toulouse III Paul‐SabatierToulouseFrance
| | - Marcel Miédougé
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance
| | - Thibaut Jamme
- Laboratoire de Biochimie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance
| | | | - Isabelle Da Silva
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance
| | - Mélanie Pucelle
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance
| | - Laetitia Staes
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance
| | - Marion Porcheron
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance
| | - Chloé Diméglio
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance,Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity) INSERM UMR1291 ‐ CNRS UMR5051ToulouseFrance,Université Toulouse III Paul‐SabatierToulouseFrance
| | - Jacques Izopet
- Laboratoire de Virologie, CHU Toulouse, Hôpital PurpanInstitut Fédératif de BiologieToulouseFrance,Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity) INSERM UMR1291 ‐ CNRS UMR5051ToulouseFrance,Université Toulouse III Paul‐SabatierToulouseFrance
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Dimeglio C, Migueres M, Bouzid N, Chapuy-Regaud S, Gernigon C, Da-Silva I, Porcheron M, Martin-Blondel G, Herin F, Izopet J. Antibody Titers and Protection against Omicron (BA.1 and BA.2) SARS-CoV-2 Infection. Vaccines (Basel) 2022; 10:1548. [PMID: 36146626 PMCID: PMC9506424 DOI: 10.3390/vaccines10091548] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/21/2022] Open
Abstract
The emergence of the SARS-CoV-2 variants of concern has greatly influenced the immune correlates of protection, and there are little data about the antibody threshold concentrations to protect against infection with SARS-CoV-2 Omicron BA.1 or BA.2. We analyzed the antibody responses of 259 vaccinated healthcare workers, some of whom had been previously infected by SARS-CoV-2. The median follow-up was 179 days (IQR: 171-182) after blood collection. We detected 88 SARS-CoV-2 Omicron infections during the follow-up period, 55 (62.5%) with SARS-CoV-2 BA.1, and 33 (37.5%) with SARS-CoV-2 BA.2. A neutralizing antibody titer below 8 provided no protection against a BA.1 infection, a titer of 16 or 32 gave 73.2% protection, and a titer of 64 or 128 provided 78.4% protection. Conversely, the BA.2 infection rate did not vary as a function of anti-BA.2 neutralizing antibody titers. Binding antibody concentrations below 6000 BAU/mL provided no protection against Omicron BA.1 infection, 6000-20,000 BAU/mL provided 55.6% protection, and 20,000 or more provided 87.7% protection. There was no difference in BA.2 infection depending on the binding antibody concentration. Further studies are needed to investigate the relationship between antibody concentrations and infection with the Omicron BA.4/5 variants that are becoming predominant worldwide.
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Affiliation(s)
- Chloé Dimeglio
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France
| | - Marion Migueres
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France
| | - Naémie Bouzid
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
| | - Sabine Chapuy-Regaud
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France
| | - Caroline Gernigon
- Occupational Diseases Department, Toulouse University Hospital, 31000 Toulouse, France
- UMR1295, Unité Mixte INSERM—Université Toulouse III Paul Sabatier, Centre for Epidemiology and Research in Population Health Unit (CERPOP), 31000 Toulouse, France
| | - Isabelle Da-Silva
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
| | - Marion Porcheron
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
| | - Guillaume Martin-Blondel
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France
- Infectious and Tropical Diseases Department, Toulouse University Hospital, 31300 Toulouse, France
| | - Fabrice Herin
- Occupational Diseases Department, Toulouse University Hospital, 31000 Toulouse, France
- UMR1295, Unité Mixte INSERM—Université Toulouse III Paul Sabatier, Centre for Epidemiology and Research in Population Health Unit (CERPOP), 31000 Toulouse, France
| | - Jacques Izopet
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France
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Dimeglio C, Trémeaux P, Herin F, Da-Silva I, Porcheron M, Martin-Blondel G, Gernigon C, Chapuy-Regaud S, Villars H, Izopet J. Post-vaccination SARS-CoV-2 antibody kinetics and protection duration against Omicron in elderly population. J Infect 2022; 85:702-769. [PMID: 36064047 PMCID: PMC9439860 DOI: 10.1016/j.jinf.2022.08.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 08/29/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Chloé Dimeglio
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France; INSERM UMR1291 - CNRS UMR5051, Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France.
| | - Pauline Trémeaux
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France; INSERM UMR1291 - CNRS UMR5051, Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France
| | - Fabrice Herin
- Occupational Diseases Department, Toulouse University Hospital, 31000 Toulouse, France; Inserm UMR 1295: Center for research in population health (CERPOP)- Department of Epidemiology and Public Health, Toulouse. University of Toulouse III F-31073, 37, allées Jules Guesde, 31073 Toulouse, France
| | - Isabelle Da-Silva
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
| | - Marion Porcheron
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France
| | - Guillaume Martin-Blondel
- INSERM UMR1291 - CNRS UMR5051, Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France; Infectious and Tropical Diseases Department, Toulouse University Hospital, 31300 Toulouse, France
| | - Caroline Gernigon
- Occupational Diseases Department, Toulouse University Hospital, 31000 Toulouse, France; Inserm UMR 1295: Center for research in population health (CERPOP)- Department of Epidemiology and Public Health, Toulouse. University of Toulouse III F-31073, 37, allées Jules Guesde, 31073 Toulouse, France
| | | | - Hélène Villars
- Inserm UMR 1295: Center for research in population health (CERPOP)- Department of Epidemiology and Public Health, Toulouse. University of Toulouse III F-31073, 37, allées Jules Guesde, 31073 Toulouse, France; CHU Toulouse (Toulouse University Hospital) Geriatric Department, Hôpital Purpan Pavillon Leriche Place Baylac, 31300 Toulouse, France
| | - Jacques Izopet
- CHU Toulouse, Hôpital Purpan, Virology Laboratory, 31300 Toulouse, France; INSERM UMR1291 - CNRS UMR5051, Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), 31300 Toulouse, France
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