The systematic review also examined the “effectiveness” of N95 respirators and surgical masks “under ‘real world'” conditions and found “no difference” between the two.
The CDC also said surgical masks were completely useless in preventing Covid at the beginning of the pandemic. Then did an about-face 2 weeks later
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The CDC also said surgical masks were completely useless in preventing Covid at the beginning of the pandemic. Then did an about-face 2 weeks later
Very thonk provoking
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