Thứ Hai, 27 tháng 1, 2020

NPR News: How Helpful Are Face Masks In Preventing The Spread Of Disease?

How Helpful Are Face Masks In Preventing The Spread Of Disease?
As China continues to report a growing number of cases of Wuhan coronavirus, images of people wearing face masks have become ubiquitous. How effective are these masks in stopping the virus' spread?

Read more on NPR
Health & Science - January 28, 2020 at 04:11AM - How Helpful Are Face Masks In Preventing The Spread Of Disease?

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