COVID-19 Early Detection System Tested in Schools by UC San Diego and San Diego County In an effort to help schools reduce the risk of COVID-19 outbreaks as they resume in-person instruction, University of California San Diego and the County of San Diego are testing the Safer at School Early Alert system, an evidence-informed program to detect SARS-CoV-2 at schools and child care centers. Knight Lab February 24, 2021 0 Share