Dynamic Change and Clinical Relevance of Postinfectious SARS-CoV-2 Antibody Responses

Although reports suggest that most individuals with coronavirus disease 2019 (COVID-19) develop detectable antibodies postinfection, the kinetics, durability, and relative differences between immunoglobulin M (IgM) and immunoglobulin G (IgG) responses beyond the first few weeks after symptom onset remain poorly understood.Within a large, well-phenotyped, diverse, prospective cohort of subjects with and without severe acute respiratory syndrome...