Everyone's confused about masks and #COVID19, so I wrote a lot of words on all the evidence and what it means for the general public in these troubled times:
You Still Probably Don’t Need A Mask For COVID-19https://link.medium.com/l7ACYQcLj5
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What do u gave to say about asymptomatic spread?
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@zeynep who did an awesome job at summarizing the evidence.Thanks. Twitter will use this to make your timeline better. UndoUndo
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How is that possible? Everything that the mask catches would have been inhaled if it wasn't for the mask. That makes no sense.
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Read the study he mentions. If the mask doesn't filter properly (and/or is damp) then you're still breathing in those particles. Then you'd need to not touch it unless removing and clean it properly every single time you use it for full protection. Lots of room for error.
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The study you refer to compared cloth masks to a control group that to a large extent was wearing mechanical masks, hence, I don't find it justified to conclude that cloth masks increased the risk compared to no mask. Do you know of other studies indicating harm of cloth masks?
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