In Sweden, mask wearing is a politicized issue, with the public health officials continually denying that wearing masks would offer any protection, This despite verified scientific research repeatedly pointing to the opposite. A new large, peer-previewed study published in the British Medical Journal has analyzed the evidence from 72 global studies, and found that mask wearing cuts the number of new Covid-19 cases by 53%.
According to the study Mask wearing, social distancing and handwashing are all effective, mask wearing reducing the incidence of Covid-19 by 53%, and physical distancing by 25%
Sweden in the Time of Corona 