doctor holds a syringe with a vaccine to a child. little girl cries and is afraid of injections and vaccinations

against akds baby bacterium caucasian child childrens clinic contagion covid19 dead diphtheria doctor dread fear graft grafting haemophilus hepatitis infection influenzae injection inoculation kid measles mumps pediatrician pediatrist pertussis phobia pneumococcus polio prevention prick protection rubella tetanus type vaccination varicella virus white