Ключевые слова: antibiotic, antibodies, antigen, bacteria, children, cold, disease, doctor, forearm, health, healthy, help, hospital, immunity, immunologist, injection, inoculation, inspection, internist, kid, little girl, medical, medical gloves, medication, medicine, pathogens, pediatrician, person, prick, stethoscope, syringe, vaccination, vaccine, viruses,