Ключевые слова: aerodrome, airplane, airport, airport terminal, arrival, barcelona, boarding, concept, coronavirus, departure, disease, distance, empty, epidemic, feet, female, flight, floor, gate, global, hygiene, infection, information, inside, international, journey, lounge, mask, pandemic, passenger, prevention, protection, public, quarantine, safety, seat, sign, sitting, social, social distancing, spain, spread, symbol, terminal, tourism, train, transport, travel, waiting, warning,