DefinitionDTaP immunization is a vaccine that protects against diphtheria, tetanus, and pertussis (whooping cough).See also: Tdap vaccineInformationThe DTaP vaccine is highly effective for the prevention of diphtheria, tetanus, and pertussis -- all of which are serious, and potentially deadly, diseases. It is given by a shot (injection), usually into the arm or thigh. The DTaP vaccine may be given as part of a combination vaccine, such as Pentacel (DTaP-Hib-IPV) or Pediarix (DTaP-HepB-IPV).WHO SHOULD GET THIS VACCINEDTaP vaccination is one of the recommended childhood immunizations. DTaP vaccine can be safely given to infants. Five DTaP vaccines are recommended. They are usually given to children at ages 2 months, 4 months, 6 months, 15-18 months, and 4-6 years. DTaP immunization is genera