Wear Masks To Protect Yourself From The Coronavirus, Not Only Others, CDC Stresses
The public health agency had previously emphasized that masks protect other people from viruses you might expel. The new advice gives a less altruistic reason to wear face-coverings.
Đọc thêm tại NPR
at November 12, 2020 at 03:25AM
Health & Science
Thứ Năm, 12 tháng 11, 2020
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