Ключевые слова: avoid, caution, chair, concept, control, corona, coronavirus, covid19, departure, disease, distance, downturn, economy, empty, epidemic, hall, health, healthy, hygiene, infection, new normal, outbreak, owners, pandemic, people, plane, prevent, prevention, protect, protection, public, quarantine, restriction, safe, safety, seat, sign, social distancing, spread, spreading, symbol, temporary, tourism, transmission, travel, virus,