There is no scientific evidence they are effective in reducing the risk of SARS-CoV-2 transmission
Their use may result in those wearing the masks to relax other distancing efforts because they have a sense of protection
We need to preserve the supply of surgical masks for at-risk healthcare workers.
https://www.cidrap.umn.edu/news-perspective/2020/04/commentary-masks-all-covid-19-not-based-sound-data
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