I like this bit from White House announcement.”screening”CDC...

I like this bit from White House announcement.”screening”

CDC Director Rochelle Walensky noted that due to limited capacity, until now testing in the U.S. has largely been used diagnostically — that is, when a person has symptoms or a known exposure.
In addition to diagnostic testing, the new funding will enable schools to use frequent testing as a screening tool, which can "identify asymptomatic disease and prevent clusters before they start," Walensky said.