Ключевые слова: 2019ncov, adult, bacteria, clinic, corona, corona virus, coronavirus, covid19, covid2019, dangerous, disease, disposable, epidemic, face mask, flu, frightened, health, health care, hospital, ill, illness, infect, infection, infectious disease, man, medical, medical mask, people, person, perspective, pneumonia, protect, protection, protective, protective mask, quarantine, respiratory, respiratory diseases, sick, sickness, spread, surgical mask, symptom, transport, transportation, virus, virus protection, young,