Antibody Responses 8 Months after Asymptomatic or Mild SARS-CoV-2 Infection

Abstract

Waning humoral immunity in coronavirus disease patients has raised concern over usefulness of serologic testing. We investigated antibody responses of 58 persons 8 months after asymptomatic or mildly symptomatic infection with severe acute respiratory syndrome coronavirus 2. For 3 of 4 immunoassays used, seropositivity rates were high (69.0%–91.4%).

Keywords

• 2019 novel coronavirus disease
• coronavirus disease
• COVID-19
• severe acute respiratory syndrome coronavirus 2
• SARS-CoV-2
• viruses