Ключевые слова: american, background, banknote, black, black background, blue, buy, care, caucasian, corona virus, covid, covid 19, danger, doctor, dollar, face, girl, glasses, goggles, health, healthcare, healthy, help, hospital, human, influenza, isolation, mask, medical, medical mask, medicine, money, nurse, occupation, payment, people, person, prevention, professional, protective, quarantine, salary, sell, serious, stethoscope, surgery, us, usa, woman,