Ключевые слова: adult, antibodies, arm, babe, background, care, caucasian, clinic, closeup, cub, cutout, doctor, dose, female, flu, glove, hand, health, hold, hospital, illness, immunity, influenza, injecting, injection, isolated, medical, medicine, needle, nurse, patient, people, pharmaceutical, polio, protection, shoulder, sterile, syringe, tetanus, tuberculosis, vaccine, white, women, worker,