CDC survey on types of masks and infection rates
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Date: February 11th, 2022 7:04 AM Author: comical sable ape
New @CDCgov study says:
Downwards arrow56% lower risk of infection—Cloth masks
Downwards arrow66% lower risk—Surgical masks
Downwards arrow83% lower risk—N95/KN95 respirators
https://twitter.com/DrEricDing/status/1491862877405429763
(http://www.autoadmit.com/thread.php?thread_id=5029474&forum_id=2#43949502) |
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