The guidance was issued following pressure from the airline industry and amid surging cases of coronavirus in the United States and strong evidence on the effectiveness of masks in curbing transmission, according to CDC officials.
Lena H. Sun, Washington Post: Politics
Mon, 10/19/2020 - 2:00pm
The guidance was issued following pressure from the airline industry and amid surging cases of coronavirus in the United States and strong evidence on the effectiveness of masks in curbing transmission, according to CDC officials.