Ключевые слова: background, bacteria, business, care, cashier, caucasian, concept, corona, covid19, disease, documents, employee, epidemic, flu, grocery, health, holding, illness, indoor, infection, influenza, job, mask, medical, medicine, microbe, outbreak, people, person, pneumonia, portrait, prevention, protection, purchase, quarantine, retail, safety, seller, shop, store, supermarket, tired, uniform, viral, virus, woman, work, worker,