Ключевые слова: abstract, alert, background, barrier, blur, blurred, building, city, concept, coronavirus, covid19, crossroads, crosswalk, crowd, crowded, defocused, disease, disinfection, distance, epidemic, group, health, home, infection, isolation, lockdown, many, medicine, motion, movement, outdoor, pandemic, people, protection, quarantine, road, safe, sidewalk, stay, street, tape, tourism, town, traffic, transportation, travel, urban, virus, walk, walking,