Face masks not 100% effective at preventing spread of COVID-19 - CDC
It is impossible to evaluate exactly where someone contracted the virus.
A protective face mask is seen as curbs to fight the spread of coronavirus disease (COVID-19) have been reimposed after a rise in new cases, at Zikim beach in southern Israel July 21, 2020. Picture taken July 21, 2020.(photo credit: AMIR COHEN/REUTERS)ByJERUSALEM POST STAFF
