Ключевые слова: 2019, 2020, airport, asia, asian, city, commute, concept, corona, coronavirus, covid19, crowd, disease, environment, epidemic, face, flight, flu, health, illness, influenza, mask, medical, mers, outbreak, outside, pandemic, people, person, pm 25, pollution, prevention, protect, protection, public, respiratory, sars, sick, sickness, spreading, surgical mask, travel, virus, wearing, wfh, woman, women, work from home,