Do virus masks actually work?

  • #1
ElliotSmith
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TL;DR Summary
Do virus masks have any effect on preventing infection from CV19?
Do virus masks have any effect on preventing or reducing risk of infection from CV19?

Have there been any studies on this?
 

Answers and Replies

  • #2
Ygggdrasil
Science Advisor
Insights Author
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2021 Award
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Here's a presentation from the CDC on the subject: https://www.cdc.gov/coronavirus/2019-ncov/downloads/science-of-masking-full.pdf

Here's an excerpt which summarizes their sources of evidence:
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