Ключевые слова: backpack, biohazard, city, clean, contagion, control, coronavirus, covid19, danger, disease, disinfection, epidemic, equipment, gloves, hazard, health, infectious, lethal, man, mask, medical, outdoor, pandemic, park, people, pest, plague, ppe, pressure, prevention, professional, protection, protective, public, quarantine, respirator, safety, sanitary, sanitize, social, specialist, sprayer, street, suit, virus, water, worker, worried,