April 2, 2020

Presymptomatic Transmission of SARS-CoV-2 — Singapore, January 23–March 16, 2020

Category: Article Summary

Topic: Transmission

• Investigations of 243 COVID-19 cases in Singapore identified seven clusters of cases in which presymptomatic transmission likely occurred, accounting for at least 10 total new cases.

Wei et al. (April 1, 2020). Presymptomatic Transmission of SARS-CoV-2 — Singapore, January 23–March 16, 2020.  MMWR. https://www.cdc.gov/mmwr/volumes/69/wr/pdfs/mm6914e1-H.pdf