Are all of CDC's MMWRs wiped from the website already?
There are a few MMWRs that strongly demonstrated solid evidence for the effectiveness of HiFi masks and air filtration at preventing respiratory infections
There are a few MMWRs that strongly demonstrated solid evidence for the effectiveness of HiFi masks and air filtration at preventing respiratory infections
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Indoor Exposure to Simulated Exhaled SARS-CoV-2 Aerosols, July 9, 2021 / 70(27);972–976,
https://www.cdc.gov/mmwr/volumes/70/wr/mm7027e1.htm
SARS-CoV-2, Updated Dec. 2021, https://www.cdc.gov/coronavirus/2019-ncov/science/science-briefs/masking-science-sars-cov2.html
Settings for Prevention of SARS-CoV-2 Infection, Feb 11, 2022 / 71(6);212–216,
https://www.cdc.gov/mmwr/volumes/71/wr/mm7106e1.htm
https://www.cdc.gov/coronavirus/2019-ncov/science/science-briefs/sars-cov-2-transmission.html
2021, https://www.cdc.gov/coronavirus/2019-ncov/need-extra-precautions/people-with-medical-conditions.html
Severe COVID-19: Information for Healthcare Providers, Oct. 2021, https://www.cdc.gov/coronavirus/2019-ncov/hcp/clinical-care/underlyingconditions.html