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Face masks prevent COVID
“The probability of getting COVID-19 for mask wearers was 7%, for non-mask wearers, probability was 52%. The Relative Risk of getting COVID-19 for mask wearers was 0.13 (95%). Based on these results, we determined that across healthcare and community settings, those who wore masks were less likely to contact COVID-19.”
https://www.medrxiv.org/content/10.1101/2022.07.28.22278153v1
Face masks prevent COVID
@smays this reads like a shitpost, coming in hot with the extremely common sense knowledge in July 2022, but I’m glad somebody did actually do the science.