Ключевые слова: adult, air, balcony, care, caucasian, contagion, coronavirus, covid19, disease, epidemic, face, female, fever, flu, fresh air, health, human, infection, influenza, mask, medical, outbreak, outdoor, pandemic, people, pollution, prevention, problem, protect, protection, protective, quarantine, risk, safety, self isolated, sick, virus, window, woman, young,