Researchers reviewed 10 random controlled trials from 1946-2018 and found “no significant reduction in influenza transmission with use of face masks” May 2020
MASK STUDY ON CDC WEBSITE
by Bob Barbatti | Oct 7, 2021 | COVID | 0 comments
Researchers reviewed 10 random controlled trials from 1946-2018 and found “no significant reduction in influenza transmission with use of face masks” May 2020