COVID Examining the Efficacy of Virus Masks: CDC Findings

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Virus masks are shown to have a significant effect on reducing the risk of COVID-19 transmission, according to CDC findings. The CDC presentation outlines various studies that support the efficacy of masks in preventing infection. Evidence indicates that masks can reduce the spread of respiratory droplets, which are a primary transmission method for the virus. The discussion emphasizes the importance of mask-wearing in conjunction with other preventive measures. Overall, the findings suggest that masks are a valuable tool in controlling the spread of COVID-19.
ElliotSmith
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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?
 
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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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