Here's a study from the original SARS epidemic showing that people who had known contact with infected people there was a 70% lower chance of infection when the

Here's a study from the original SARS epidemic showing that people who had known contact with infected people there was a 70% lower chance of infection when they wore masks[1]. At this point, arguing that masks don't work is absolutely taking the piss -- you only need to look at countries like Japan (which made the political decision to not do widespread lockdowns unlike many other countries in Asia) to see that widespread mask usage clearly works. > Supporting the validity of this finding, there was a dose-response effect: by multivariable analysis, persons who always wore masks had a 70% lower risk of being diagnosed with clinical SARS compared with those who never wore masks, and persons with intermittent mask use had a 60% lower risk. Many persons who wore masks in the community did not use N-95 or similar highly efficient filtration devices, which have been recommended for use in the hospital setting. [1]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3322931/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3322931/