Diphtheria vaccine

Edina Avdic, Pharm.D.
Pediatric Dosing Author: Lisa Hutchins, Pharm.D.


  • Types/abbreviations:
    • DT (tetanus + diphtheria toxoids)
    • Td (tetanus toxoid+ reduced-dose diphtheria toxoid)
    • DTaP (DT + acellular pertussis)
    • Tdap (Td + reduced-dose acellular pertussis)
  • Usual administrations:
    • DTaP and DT: are given to children < 7 years old
    • Tdap and Td: are given to older children and adults
    • For other combinations, see formulations

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Last updated: February 15, 2021