Pfizer vaccine appears effective against asymptomatic cases; feds plan to ramp up vaccinators, sites: COVID-19 updates
Elinor Aspegren, USA TODAYComments Off on Pfizer vaccine appears effective against asymptomatic cases; feds plan to ramp up vaccinators, sites: COVID-19 updates
Data from Israel suggests Pfizer vaccine appears effective against asymptomatic COVID-19 cases. Latest coronavirus updates.