New Cochrane review of all available evidence regarding masks:
"No reduction in respiratory viral infection with the use of masks."
The review looked into flu transmission, but is as relevant for Covid, since the transmission is similar.https://t.co/ocYI7vvcAw pic.twitter.com/W8q4rnFxdj
— Dr. Eli David (@DrEliDavid) November 25, 2020
