Among the public in places such as Thailand, South Korea and Taiwan, surgical masks are widely believed to reduce the spread of COVID-19.

Among the public in places such as Thailand, South Korea and Taiwan, surgical masks are widely believed to reduce the spread of COVID-19.

Among the public&nbsp;in places such as Thailand, South Korea and Taiwan, surgical masks are widely believed to reduce the spread of COVID-19.

Coronavirus fears in Asia create a black market for masks

A daily public radio broadcast program and podcast from PRX and WGBH, hosted by Marco Werman

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