Sky was doing the reporting, not the science. To see the science, go to the links. I'll do the first one for you, at the bottom. From the article,
"Real-world studies are a bit harder to come by, but the US Centers for Disease Control and Prevention (CDC) has highlighted a few.
In one high-exposure event, two hair stylists - who were displaying symptoms - were found to have interacted with 139 clients during an eight-day period.
Image:Scientists are overwhelmingly in favour of wearing face masks. Pic: Reuters
The stylists and the clients all wore masks, and of the 67 clients who subsequently consented to an interview and were tested, not a single one had become infected.
Another study in China found that, in 124 households where there had been a laboratory-confirmed coronavirus case, mask wearing by both the patient and the other inhabitants reduced transmission within the household by 79%.
Aboard the USS Theodore Roosevelt, where living quarters and working environments leave little room for social distancing, a study found there was a 70% reduced risk of infection among those who used a face covering.
In Thailand, a retrospective case-control study found that among 1,000 people interviewed as part of contact tracing investigations, those who reported always having worn a mask during high-risk exposures again experienced a 70% reduced risk of becoming infected compared with others.
An international report published in The Lancet, which analysed data from 172 studies in 16 countries, found that by wearing a face mask there is just a 3% chance of catching COVID-19.
Another study found that homemade face masks can help limit the spread of the coronavirus."
news.sky.com
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Absence of Apparent Transmission of SARS-CoV-2 from Two Stylists After Exposure at a Hair Salon with a Universal Face Covering Policy — Springfield, Missouri, May 2020
Weekly / July 17, 2020 / 69(28);930-932
On July 14, 2020, this report was posted online as an MMWR Early Release.
M. Joshua Hendrix, MD1; Charles Walde, MD2; Kendra Findley, MS3; Robin Trotman, DO4 ( View author affiliations)
cdc.gov |
