Presymptomatic Transmission of SARS-CoV-2 - Singapore, January 23-March 16, 2020
by from Morbidity and Mortality Weekly Report (MMWR) on (#51JJA)
Investigation of all 243 cases of COVID-19 reported in Singapore during January 23-March 16 identified seven clusters of cases in which presymptomatic transmission is the most likely explanation for the occurrence of secondary cases.