While there's a lot of debate about masks that's ongoing, one thing I think is worth remembering is that the evidence shows that they are neither necessary nor sufficient to control a COVID-19 outbreak
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Now, this isn't really a surprise, because no single intervention was ever going to be a silver bullet for coronavirus, but it's still worth bearing in mind
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The point here, however, is that we like to focus on interventions requiring personal action (masks) even though they are usually (in a public health sense) less effective than population-level measures
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End of conversation
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I’m not anti-mask but rather pro-smart mask http://thesgem.com/2020/05/sgem-xtra-mask4all-debate/ …pic.twitter.com/g3NyQ0tUe3
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