Ключевые слова: alert, allergy, animal, beautiful, biohazard, breed, brown, canine, care, clinic, contagion, contagious, cute, diagnosis, disease, doctor, dog, epidemic, face, filter, friendly, funny, german shepherd dog, health, healthcare, humor, ill, immunity, infection, isolated, mask, medical background, medicine, muzzle, nurse, pedigreed, pet, pretty, prevention, protective, purebred, respiratory, safety, sickness, surgeon, transmission, vet, veterinary, viral, virus,