Antibody Responses One Year after Mild SARS-CoV-2 Infection

Understanding the long-term kinetics of antibodies in coronavirus disease 2019 (COVID-19) is essential in interpreting serosurvey data. We investigated the antibody response one year after infection in 52 mildly symptomatic patients with severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) i...

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Bibliographic Details
Published in:Journal of Korean medical science 2021, 36(21), , pp.1-4
Main Authors: Choe, Pyoeng Gyun, Kim, Kye-Hyung, Kang, Chang Kyung, Suh, Hyeon Jeong, Kang, EunKyo, Lee, Sun Young, Kim, Nam Joong, Yi, Jongyoun, Park, Wan Beom, Oh, Myoung-don
Format: Article
Language:English
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Brief Communication
의학일반
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Summary:Understanding the long-term kinetics of antibodies in coronavirus disease 2019 (COVID-19) is essential in interpreting serosurvey data. We investigated the antibody response one year after infection in 52 mildly symptomatic patients with severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection, using three commercial immunoassays and a surrogate virus neutralization test (sVNT) kit. Anti-N pan-immunoglobulin (Ig), anti-S IgG, and anti-S1 IgG were detected in 43 (82.7%), 44 (84.6%), and 30 (57.7%), respectively. In 49 (94.2%), the antibody could be detected by either anti-N pan-Ig or anti-S IgG assay. In the sVNT, 30 (57.7%) had positive neutralizing activity. Despite waning immunity, SARS-CoV-2 antibodies can be detected up to one year after infection, even in mild COVID-19 patients.
ISSN:1011-8934
1598-6357
DOI:10.3346/jkms.2021.36.e157