HLA alleles, disease severity, and age associate with T-cell responses following infection with SARS-CoV-2.

ABSTRACT: Memory T-cell responses following SARS-CoV-2 infection have been extensively investigated but many studies have been small with a limited range of disease severity. Here we analyze SARS-CoV-2 reactive T-cell responses in 768 convalescent SARS-CoV-2-infected (cases) and 500 uninfected (controls) Icelanders. The T-cell responses are stable three to eight months after SARS-CoV-2 infection, irrespective of disease severity and even those with the mildest symptoms induce broad and persistent T-cell responses. Robust CD4⁺ T-cell responses are detected against all measured proteins (M, N, S and S1) while the N protein induces strongest CD8⁺ T-cell responses. CD4⁺ T-cell responses correlate with disease severity, humoral responses and age, whereas CD8⁺ T

SUBMITTER: Olafsdottir TA 

PROVIDER: S-EPMC9446630 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature