diphtheria and tetanus toxoids and acellular pertussis vaccine
DTaP vaccine; a combination of diphtheria toxoid, tetanus toxoid, and acellular pertussis vaccine; adsorbed on an aluminum-adsorbing agent. It is administered intramuscularly to children younger than seven years of age, for simultaneous immunization against diphtheria, tetanus, and pertussis. Cf. tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis v.
Medical dictionary.
2011.