"Masks stop respiratory droplets sometimes!" is a ridiculous exercise in surrogate outcomes
We KNOW that masks are unlikely to prevent community acquired infections. THAT'S what we care about, not some statistics on particulate movement #COVID19
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I don't understand why it should be useful for healthcare workers but not at the community level - what should be the difference? See also tweet about intensity of exposure - anything that could reduce intensity would likely be beneficial? https://www.washingtonpost.com/outlook/2020/03/28/masks-all-coronavirus/ …
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