Ключевые слова: avoid, between, boots, concept, contact, contagious, covid, disease, distance, distancing, epidemic, floor, flu, health, illness, infected, infection, infectious, isolation, jeans, keep, keep distance, line, man, pandemic, people, person, physical, prevention, protection, public, public heath, quarantine, safety, security, shoe, shoes, shop, sign, social, social distance, space, spread, spreading, supermarket, turn, virus,