Ключевые слова: airport, america, antibiotics, boy, child, concept, disease, distancing, epidemic, flight, flu, health, health risk, healthcare, hygiene, illness, immunity, infect, infection, lockdown, mask, medical, pandemic, pollution, prevention, protect, protection, sars, sickness, social, social distancing, stay safe, suitcase, surgical mask, symbol, symptoms, tourism, travel, traveler, vaccine, virology, virus,