Characterizing SARS-CoV-2-specific Immunity in Individuals Who Have Recovered From COVID-19

This study aims to characterize the SARS-CoV-2-specific immunity in convalescent individuals. The observational cohort study will include 3 groups, as described in the table below. Participants will complete a minimum of one visit (1-8 weeks post resolution of COVID-19 OR 2-10 weeks post most recent positive SARS-CoV-2 test, if asymptomatic) and optional visits approximately 2 months, 4 months, and 1 year later. Participants diagnosed with SARS-CoV-2 infection at an optional follow-up visit may be contacted more frequently. Additional follow up visit(s) may be added over time in response to evolving information regarding SARS-CoV-2 infection and COVID-19. Study visits may include physical examinations, medical history, questionnaires, pregnancy tests (for participants assigned female at birth), blood draws, optional nasal samples, and optional HIV testing.