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Journal Articles Journal of Infectious Diseases Year : 2021

Kinetics of the Severe Acute Respiratory Syndrome Coronavirus 2 Antibody Response and Serological Estimation of Time Since Infection

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Maria Gonzalez
Jerome de Seze
  • Function : Author
Olivier Schwartz
Veasna Duong
Samira Fafi-Kremer

Abstract

Background Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) induces a complex antibody response that varies by orders of magnitude between individuals and over time. Methods We developed a multiplex serological test for measuring antibodies to five SARS-CoV-2 antigens and the Spike proteins of seasonal coronaviruses. We measured antibody responses in cohorts of hospitalized patients and healthcare workers followed for up to eleven months after symptoms. A mathematical model of antibody kinetics was used to quantify the duration of antibody responses. Antibody response data were used to train algorithms for estimating time since infection. Results One year after symptoms, we estimate that 36% (95% range: 11%, 94%) of anti-Spike IgG remains, 31% (9%, 89%) anti-RBD IgG remains, and 7% (1%, 31%) anti-Nucleocapsid IgG remains. The multiplex assay classified previous infections into time intervals of 0–3 months, 3–6 months, and 6–12 months. This method was validated using data from a sero-prevalence survey in France, demonstrating that historical SARS-CoV-2 transmission can be reconstructed using samples from a single survey. Conclusions In addition to diagnosing previous SARS-CoV-2 infection, multiplex serological assays can estimate the time since infection which can be used to reconstruct past epidemics.
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Origin : Publication funded by an institution

Dates and versions

pasteur-03319587 , version 1 (12-08-2021)
pasteur-03319587 , version 2 (02-05-2022)

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Attribution - NonCommercial - NoDerivatives - CC BY 4.0

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Stéphane Pelleau, Tom Woudenberg, Jason Rosado, Françoise Donnadieu, Laura Garcia, et al.. Kinetics of the Severe Acute Respiratory Syndrome Coronavirus 2 Antibody Response and Serological Estimation of Time Since Infection. Journal of Infectious Diseases, 2021, 224 (9), pp.1489-1499. ⟨10.1093/infdis/jiab375⟩. ⟨pasteur-03319587v2⟩
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