Face masks (at best) ineffective against SARS-CoV-2 / COVID-19 and flu

A series of studies, some of them covering viruses other than SARS-CoV-2, yet the findings of all of them are the same – no statistically significant protective effect of face masks, and, in some cases, possibly increased rates of infection (see first study below). https://www.reuters.com/article/us-health-coronavirus-facemasks-idUSKBN27Y1YW https://www.acpjournals.org/doi/10.7326/M20-6817 “…A total of 3030 participants were randomly assigned to … Read more Face masks (at best) ineffective against SARS-CoV-2 / COVID-19 and flu