#MandatoryMasks

My #thread summary of this new paper: ‘Face Masks Against COVID-19: An Evidence Review’ @Ldnontmayor @st3v3turn3r @ElizabethPeloza @MohamedMOSalih @shawnwlewis @jesse_helmer @MaureenPCassidy @JoshMorganLDN @AnnaHopkins11 @ArielkeK @Heal
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