Ключевые слова: air, allergy, animal, background, beautiful, brown, care, concept, cute, danger, disease, doctor, dog, dust, environment, epidemic, face, flu, head, health, home, hospital, humor, hygiene, illness, infection, mammal, mask, medical, medicine, nose, pandemic, pet, pneumonia, protection, puppy, quarantine, respiratory, risk, safe, safety, sick, small, surgery, virus,