Do you believe this analysis that universal mask wearing would reduce COVID-19 infections by 40%?https://www.nature.com/articles/s41591-020-1132-9 …
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No, they're ignoring a fundamental truth in research: efficacy in a controlled setting is almost always higher than effectiveness in the real world. The real world isn't a lab.
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There much better studies showing wearing masks will definitely decrease speard of COVID19 . See belowhttps://twitter.com/davidrliu/status/1319980226592575488?s=20 …
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That's not how breakouts work.
End of conversation
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Nope
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