1/3 US officials initially told us not to bother wearing #facemasks in #COVID19 epidemic b/c of low effectiveness. & #39;There& #39;s a model for that& #39; is the new & #39;there& #39;s an app for that.& #39; Let& #39;s look.

2/3 80% adoption of moderately (50%) effective masks could prevent 17–45% of projected deaths over two months in NY, decreasing peak daily death rate 34–58%. Even crappy masks (20% effective) can help: In Washington, 80% adoption could reduce
mortality 24–65%, peak deaths 15–69%)

3/3 In NY, this alone would --> 2–9% mortality reduction, 9-18% peak death reduction. Are you still not wearing a facemask b/c & #39;they& #39;re not effective& #39;? From https://www.medrxiv.org/content/10.1101/2020.04.06.20055624v1">https://www.medrxiv.org/content/1...