nurse with a small child is ready to give a therapeutic injection.syringe

illness prevention nurse child pediatrician injecting syringe vaccination protection insurance virus medical injection equipment immune system research expertise antibiotic laboratory flu vaccine procedure fear practitioner center paramedic supplies test accuracy immunology pharmacist ampoule prescription painkiller daughter pharmacy healthcare medicine patient doctor care hospital exam occupation clinic recovery playful worker trust assistance positive emotion teaching preparation small ready give therapeutic injection syringe person trained sick infirm