Ключевые слова: background, bacteria, banner, battlements, blue, care, copy space, corona, corona protection, coronavirus, covid19, disease, distance, doctor, epidemic, equipment, face, filter, flu, health, health care, hospital, hygiene, hygienic, illness, in advance, infection, influenza, mask, masks, medical, medicine, pandemic, prevention, protect, protection, protective, quarantine, safety, space, surgical, surgical mask, virus, white,