The US Centers for Disease Control and Prevention updated its school guidance Friday. The update adds more details to existing guidelines that will better inform administrators' decisions about opening schools and limit risk, according to CDC Director Dr. Robert Redfield.
원문출처 : https://www.cnn.com/2020/08/21/health/cdc-covid-19-school-guidelines/index.html
원문출처 : https://www.cnn.com/2020/08/21/health/cdc-covid-19-school-guidelines/index.html