Ключевые слова: anesthetic, antibodies, arm, care, caucasian, clinic, closeup, doctor, dose, female, flu, hand, health, hold, hospital, illness, immunity, influenza, injecting, injection, medical, medicine, needle, nurse, patient, people, pharmaceutical, polio, protection, sterile, surgical glove, syringe, tetanus, tuberculosis, vaccination, vaccine, white, women,