The DTaP vaccination series is an FDA-approved, five-shot vaccine for young children in the United States for protection against diphtheria, tetanus, and pertussis. DTaP stands for diphtheria, tetanus, and acellular pertussis, which are all common childhood diseases. In the US, Daptacel and Infanrix are the two types of DTaP vaccines, whereas other countries offer other variations. Both Daptacel and Infanrix consist of five shots that stimulate the immune system to protect a child against those diseases. Children vaccinated with DTaP may still end up getting one of the diseases, but they often present with milder symptoms than if they were not vaccinated. The general vaccination schedule for the five shot series is two months, four months, six months, fifteen to eighteen months, and four to six years of age. DTaP vaccination fully protects nine out of ten children against acquiring disease, contributing to a downward trend in diphtheria, tetanus, and pertussis cases in developing children in the US.