PNAS January 26, 2021
That would imply this article is "old news" correct? I guess they overlooked this RCT, correct?
meanwhile the Danes decided to find out:
"It’s the first randomized controlled trial involving face masks and COVID-19 to report results. Around 6,000 people who left their homes for at least three hours a day participated, with approximately half being given a box of 50 surgical masks and being told to wear a mask whenever outside of their homes, while the other half was not given masks or such a mask recommendation."
November 18, 2020·1 min read
COPENHAGEN (Reuters) - A Danish study released on Wednesday found face masks provide the wearer with only limited protection against COVID-19 infection, but said this should not be used to argue against their widespread use to prevent people infecting others.
In the study, which was carried out in April and May when Danish authorities did not recommend wearing face masks, 6,024 adults were divided into two groups, one wearing face masks and one control group.
After one month, 1.8% of the people wearing masks had been infected, while 2.1% of the people in the control group had tested positive, Copenhagen University Hospital said in a press release.
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