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A comment on YouTube is banning anti-vaccine activists and blocking all anti-vaccine content. Parent comment
https://med.stanford.edu/news/all-news/2021/09/surgical-mask...
Cloth masks don't work at all, and surgical masks only reduce infections by 11%. N95s are probably a lot more effective but this study didn't measure those.
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https://med.stanford.edu/news/all-news/2021/09/surgical-mask...
Cloth masks don't work at all, and surgical masks only reduce infections by 11%. N95s are probably a lot more effective but this study didn't measure those.