Influenza like illness rates 3 times higher with cloth masks when compared to control group

First published at 02:40 UTC on March 9th, 2021.

Influenza like illness rates 3 times higher with cloth masks when compared to control group:
https://bmjopen.bmj.com/content/5/4/e006577
Prof. Carl Heneghan, Oxford University: "The high quality trial evidence for cloth masks suggest they increas…

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