professional and home-made face masks show exposure to respiratory infections among the general population
professional and home-made face masks show exposure to respiratory infections among the general population
face- masks worn by the general population could be an accessible and affordable intervention, if effective when worn under routine circumstances.", "conclusions/significance: any type of general mask use is likely to decrease viral exposure and infection risk on a population level, in spite of imperfect fit and imperfect adherence, personal respirators providing most protection.")