Ключевые слова: air, bacterium, boy, brother, care, caucasian, child, childhood, children, corona, coronavirus, covid19, cute, dangerous, disease, doctor, education, family, flu, girl, health, health care, home, hospital, infection, influenza, isolation, kid, mask, masked, medical, medicine, patient, people, play, prevention, protection, protective, quarantine, respiratory, sad, safety, sick, sister, together, virus, window, young,