Rapid Sentinel Surveillance for COVID-19 - Santa Clara County, California, March 2020

Published on April 9, 2020

On February 27, 2020, the Santa Clara County Public Health Department (SCCPHD) identified its first case of coronavirus disease 2019 (COVID-19) associated with probable community transmission (i.e., infection among persons without a known exposure by travel or close contact with a patient with confirmed COVID-19)