NEW YORK -- You better start stocking up on your surgical or N95 or KN95 masks. Studies are emerging that cloth masks are not as effective in preventing the spread of COVID. A study released in ...
SAN FRANCISCO -- Doctors say any mask is better than no mask, but cloth masks may not be getting the job done well enough against omicron. As cases surge, many are turning to N95 or KN95 masks to ...
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