Large-scale testing of asymptomatic healthcare personnel for severe acute respiratory syndrome coronavirus 2

Abstract

Large-scale, 1-time testing of >12,000 asymptomatic healthcare personnel in California, USA, during April- June 2020 showed that prevalence of severe acute respiratory syndrome coronavirus 2 was low (<1%). Testing might identify asymptomatic and presymptomatic persons, including some with high viral burden, enabling prompt implementation of measures to limit nosocomial spread.