White House announces 3 new mass vaccination sites in Texas; Feds investigate counterfeit N95 mask operation: Live COVID-19 updates John Bacon, Elinor Aspegren and Doyle Rice, USA TODAY
Achieving Herd Immunity: How vaccines and masks are the keys to fight coronavirus
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Wearing a tight-fitting mask or a double mask can dramatically decrease exposure to and spread of COVID-19, a crucial defense against emerging new variations of the virus, the CDC reported Wednesday.
In lab tests with dummies, exposure to potentially infectious aerosols decreased by more than 90% when tight or double masks were used, the CDC said.
“Cases hospitalizations and deaths are still very high, said Dr. Rochelle Walensky, head of the Centers for Disease Control and Prevention, at a White House coronavirus briefing. Now is not the time to roll back mask requirements.
The Prime Minister declared that all arrivals to the UK will have to have tested negative for coronavirus from Monday as he begged Britons to 'stay at home this weekend'.