Fourteen states and DC released their contact tracing apps so far, with CA and others to follow, but adoption has been uneven due to politicization of COVID-19 (Rolfe Winkler/Wall Street Journal)
Fourteen states and DC released their contact tracing apps so far, with CA and others to follow, but adoption has been uneven due to politicization of COVID-19 (Rolfe Winkler/Wall Street Journal)