Ключевые слова: air, airport, allergy, asian, black and white, boy, child, cinchona, corona virus, coronavirus, covid19, disease, dust, epidemic, face, family, flu, halt, health, ill, infection, infectious, influence, kid, mask, medical, mother, novel, pandemic, people, pm 25, pollution, prevention, problem, protect, quarantine, safe, sick, sick woman, sickness, symptoms, terminal, traveler, virus, woman,