Comment Comment by timr All current evidence is that masks have a minor effect, measured in tiny fractions of a percent.https://vinayprasadmdmph.substack.com/p/do-masks-reduce-risk...To date, I'm aware of no study that has quantified a difference in infection, hospitalization or death that is attributable to travel bans. parent timr 5 years ago
https://vinayprasadmdmph.substack.com/p/do-masks-reduce-risk...
To date, I'm aware of no study that has quantified a difference in infection, hospitalization or death that is attributable to travel bans.