I think the point of reducing the viral dose is important by using masks and distance. Some evidence current infections are less severe than in spring with less admissions.
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The other important message was that while completely preventing infection is hard, masks may preventing serious infection by reducing viral dose. And the whole concept of viral dose and severity that @DrSidMukherjee wrote about in mid March in @NewYorker. Even cloth masks help. twitter.com/VincentRK/stat…
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