Spate of new research supports wearing masks to control coronavirus spread

“Anecdotally, it appears that face-mask use is an important control against multiple modes of SARS-CoV-2 transmission,” including droplets and aerosols, said Jeffrey Shaman, an epidemiologist at Columbia University.

He highlighted Asian countries such as South Korea, Taiwan and Vietnam that had high rates of face-mask use early in the pandemic. They “have had better success squashing the virus and keeping their economies going,” Shaman said.

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