CDC Publishes — Then Withdraws — Guidance On Aerosol Spread Of Coronavirus
The CDC says the guidelines were posted to its website in error. The now-deleted updates were notable because so far the agency has stopped short of saying that the virus is airborne.
Đọc thêm tại NPR
at September 22, 2020 at 03:08AM
Health & Science
Thứ Ba, 22 tháng 9, 2020
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