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Best and worst masks to protect from coronavirus – New York Daily News

https://www.nydailynews.com/coronavirus/ny-coronavirus-mask-transmission-covid-study-efficacy-20200810-cg24pk5urjdf3pyuqpbt4sw7wm-story.html

“If everybody used a mask, we could stop up to 99% of these droplets prior to they reach somebody else,” study co-author Dr. Eric Westman, a doctor at Duke, said in a declaration. “In the absence of a vaccine or antiviral medicine, its the one tested way to secure others as well as yourself.”