Ключевые слова: airport, break, city, commute, control, country, covid, crisis, crowd, disease, face, face mask, flu, global, group, health, holiday, ill, illness, infection, international, looking, mask, outdoors, outside, people, pollution, problems, protect, protection, public, requirement, restriction, risk, safety, sick, sickness, standing, together, tourist, tourists, town, travel, traveler, traveling, trip, urban, vacation, virus, wellness,