Ключевые слова: air, background, boy, breathing, care, caucasian, child, chinese, corona, coronavirus, danger, disease, environment, epidemic, face, fever, flu, health, healthcare, healthy, human, hygiene, ill, illness, infection, influenza, kid, male, mask, medical, medicine, pandemic, patient, people, person, pollution, protect, protection, protective, safety, sick, smog, toxic, virus, wearing, white, young,