Which masks protect against delta COVID-19 variant?
The CDC is expected to advise fully vaccinated Americans to resume wearing masks while indoors in certain public settings amid a rise in COVID-19 cases largely due to the delta variant.
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Which masks protect against delta COVID-19 variant?
The CDC is expected to advise fully vaccinated Americans to resume wearing masks while indoors in certain public settings amid a rise in COVID-19 cases largely due to the delta variant.