Much of the confusion around masks stems from the conflation of two very different uses, @zeynep, @jeremyphoward, and @trishgreenhalgh report. http://on.theatln.tc/vXpA7Gu
It’s from NIH scientists. There’s nothing stopping you from changing your cloth mask every hour. (If you’re around people all day!). They’re easy to make and easy to wash.
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I don't think you understand. The intervention used in the cited NEJM article is with a damp washcloth.
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