>"Conclusions. Societal norms and government policies supporting the wearing of masks by the public, as well as international travel controls, are independently

>"Conclusions. Societal norms and government policies supporting the wearing of masks by the public, as well as international travel controls, are independently associated with lower per-capita mortality from COVID-19." Fine, still correlation doesn't mean causation >Numbers vary across studies and materials, but a mask of a single layer of moderate thread count cotton is 80-100% effective at filtration depending on particle size. The issue is the virus is smaller than the mask pores. >30% asymptomatic does not a "vast majority" what i mean is both asymptomatic case + mild symptom combined > 1 in 50 infected dying Thats probably for the age 80 or above. For most people remain, its nothing to be afraid of.