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by ggdG
865 days ago
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>literally quoting from that meta-analysis, which does not include many clinical trials that have demonstrated an impact: Yes. To their credit, they only looked at randomized controlled trials. >"Key messages We are uncertain whether wearing masks or N95/P2 respirators helps to slow the spread of respiratory viruses based on the studies we assessed." In other words: the RCTs don't show an effect to a significant degree. |
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