Ключевые слова: 19, air, aircraft, airline, airplane, airport, arrival, asian, aviation, baltic, ban, banner, block, booking, border, business, cancel, canceled, cancellation, closed, closure, concept, corona, coronavirus, covid, crowd, eu, euro, europe, flight, fly, france, germany, holiday, lockdown, mask, medical, negative, passport, plane, quarantine, surgical, test, ticket, tourism, tourist, travel, trip, vaccine, virus,