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Eric Feigl-Ding

@DrEricDing

Epidemiologist & health economist. Co-founder @TheWHN. Former 16 years @Harvard. Health alerts—https://t.co/eNp7gjyhC0 SUBSCRIBE: https://t.co/I6xZVmz79l

calendar_today10-01-2009 11:01:33

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3) And MASKS do work!!

Association Between Universal Masking in a Health Care System and SARS-CoV-2 Positivity Among Health Care Workers

jamanetwork.com/journals/jama/…

3) And MASKS do work!! Association Between Universal Masking in a Health Care System and SARS-CoV-2 Positivity Among Health Care Workers jamanetwork.com/journals/jama/…
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4) A big scientific evidence review study on face masks.

“We recommend that public officials and governments strongly encourage the use of widespread face masks in public, including the use of appropriate regulation.” europepmc.org/article/PPR/PP…

4) A big scientific evidence review study on face masks. “We recommend that public officials and governments strongly encourage the use of widespread face masks in public, including the use of appropriate regulation.” #COVID19 europepmc.org/article/PPR/PP…
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5) Another big study on .

“As a result of the implementation (mask) mandates, more than 200,000 COVID-19 cases were averted by May 22, 2020. The findings suggest that requiring face mask use in public could help in mitigating the spread of
healthaffairs.org/doi/10.1377/hl…

5) Another big study on #masks. “As a result of the implementation (mask) mandates, more than 200,000 COVID-19 cases were averted by May 22, 2020. The findings suggest that requiring face mask use in public could help in mitigating the spread of #COVID19” healthaffairs.org/doi/10.1377/hl…
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6) Here is meanwhile a recent CDC MMWR report on Arizona outbreak. Masks clearly indicated to have helped. cdc.gov/mmwr/volumes/6…

6) Here is meanwhile a recent CDC @CDCMMWR report on Arizona outbreak. Masks clearly indicated to have helped. #COVID19 #Masks cdc.gov/mmwr/volumes/6…
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7) Another case on mask protecting an infectious person on a plane from infecting anyone else because he wore a .

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8) that said, *cloth* masks are only as good if everyone wears them. Masks work if entire or vast majority of people wear them. But this doesn’t happen during indoor dining and bars or airplanes.

For self protection if many don’t wear around you, premium masks likely needed.

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9) Back to the Beauty & The Beast (not sleeping beauty—sorry sleepy) mask video - here is the YouTube of Noah Lindquist who made and uploaded it. I’m not certain of his Twitter tag, but if someone verifies who he is on twitter, tag him. Thanks Noah!

youtu.be/ltjBT_TuUVA

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10) Another study (preprint) on masks and deaths.

“Conclusions. Societal norms & govt policies supporting wearing of masks by the public, as well as international travel controls, are independently associated w/ lower per-capita mortality from
medrxiv.org/content/10.110…

10) Another study (preprint) on masks and deaths. “Conclusions. Societal norms & govt policies supporting wearing of masks by the public, as well as international travel controls, are independently associated w/ lower per-capita mortality from #COVID19” medrxiv.org/content/10.110…
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