Ключевые слова: aeroplane, arrival, authority, boarding, business, certificate, check, citizen, control, custom, disease, document, finger, flu, giving, global, health, healthcare, hold, id, identification, identity, immigration, immune, infection, information, international, law, legal, man, medical, medicine, modern, money, pass, passport, person, protection, record, registration, safety, security, technology, ticket, transportation, vaccine, world, worldwide,