While shopping with distance, if you accidentally touch the outside of your mask, should you rush to take it off under biosafety level 3 rules? No. Mask still protects *others* from your potential spread. Yeah your hand can carry some virus there but remember viral load matters!
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Professor — I am a fan of your work but the viral dose theory is just a theory. I find it plausible, but the NYT piece made it seem certain. See this paper out today (small sample size I know); casts some doubt on benefits of surgical and cotton masks. https://twitter.com/drjohnm/status/1247249167510122497?s=21 …https://twitter.com/drjohnm/status/1247249167510122497 …
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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