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A comment on Surgical masks reduce Covid-19 spread, large-scale Stanford study shows. Parent comment

Re:Surgical masks reduce Covid-19 spread, large-scale Stanfo... by 908B64B197 on Friday September 03, 2021 @03:05PM (#28408041)
Someone sent it to me a little while ago.

Enjoy. https://youtu.be/5ByEppIvsDc

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