Ключевые слова: adult, building, business, businessman, center, colleague, danger, disease, elevator, employee, epidemic, face, female, formal, friends, front, health, infection, lifestyle, lift, man, manager, mask, medical, medicine, metal, office, open, pandemic, people, person, prevention, protection, protective, quarantine, safety, sick, standing, students group, suit, virus, wear, wearing, woman, women, young,