Here’s Visible Proof Masks Work

Monday, August 10, 2020 - 09:52 in Paleontology & Archaeology

Duke physician Eric Westman was one of the first champions of masking as a means to curtail the spread of coronavirus, working with a local non-profit to provide free masks to at-risk and under-served populations in the greater Durham community. But he needed to know whether the virus-blocking claims mask suppliers made were true, to assure he […]

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