Ключевые слова: antibodies, arm, b, blue, care, clinic, doctor, dose, equipment, female, finger, first, flu, glove, hand, health, healthcare, healthy, hepatitis, holding, hospital, human, illness, immunity, injecting, injection, insulin, isolated, liquid, medical, medicine, needle, nurse, object, on, patient, people, plastic, polio, protection, sterile, surgical, syringe, tetanus, treatment, tuberculosis, vaccination, vaccine, white, worker,