Diphtheria-tetanus-acellular pertussis vaccine safety in children under 7 years: a post-marketing analysis of the U.S. vaccine adverse event reporting system

This post-marketing surveillance indicates that most reported AEs were non-serious and occurred within 30 days following vaccination. These findings support the known safety profile of DTaP vaccines and highlight identifiable timing patterns of AEs, which may help inform monitoring strategies and benefit-risk assessments after immunization.