Evolution of immune responses to SARS-CoV-2 in mild-moderate COVID-19.

ABSTRACT: The durability of infection-induced SARS-CoV-2 immunity has major implications for reinfection and vaccine development. Here, we show a comprehensive profile of antibody, B cell and T cell dynamics over time in a cohort of patients who have recovered from mild-moderate COVID-19. Binding and neutralising antibody responses, together with individual serum clonotypes, decay over the first 4 months post-infection. A similar decline in Spike-specific CD4⁺ and circulating T follicular helper frequencies occurs. By contrast, S-specific IgG⁺ memory B cells consistently accumulate over time, eventually comprising a substantial fraction of circulating the memory B cell pool. Modelling of the concomitant immune kinetics predicts maintenance of serological neutralising activity a

SUBMITTER: Wheatley AK 

PROVIDER: S-EPMC7896046 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature