Mask guidance from WHO
In areas of active SARS-CoV-2 transmission, governments should encourage the public to wear face masks in certain settings, the World Health Organization now recommends. Nonmedical face masks should be encouraged when people cannot keep a distance of at least 6 feet apart (e.g., public transportation, mass gatherings, grocery stores, schools, church, refugee camps). Medical face masks are recommended for vulnerable groups like seniors and people with underlying medical conditions and for those with symptoms consistent with COVID-19.