Ключевые слова: adult, air, allergy, asian, background, car, care, child, chinese, city, cold, concept, coronavirus, covid19, danger, disease, environment, epidemic, face, female, fever, flu, girl, health, ill, illness, infection, influenza, looking, mask, medical, medicine, outdoor, people, person, pollution, portrait, prevention, protect, protection, protective, safety, sick, smog, street, surgical, transport, virus, wearing, woman,