the main thing (80% of the benefit maybe) is that masks prevent people from touching their face. almost anything would do this!https://twitter.com/EricTopol/status/1247305470236176384 …
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the main thing (80% of the benefit maybe) is that masks prevent people from touching their face. almost anything would do this!https://twitter.com/EricTopol/status/1247305470236176384 …