Evidence shows that, yes, masks prevent COVID-19 – and surgical masks are the way to go
By Laura (Layla) H. Kwong, Assistant Professor of Environmental Health Sciences, University of California, Berkeley
Since the coronaviurs first began spreading around the globe, people have debated how effective masks are at preventing COVID-19. A year and a half in, what does the evidence show?
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- Wednesday, September 22, 2021