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  • Diphtheria
  • Tdap and Pregnancy
  • Pertussis
  • Tdap and Pregnancy
  • Tetanus
  • Tdap and Pregnancy

A 17-year-old received a dose of Tdap vaccine when she was 12 years old. She is now pregnant. Should she get another dose of Tdap vaccine?

Yes. ACIP recommends a dose of Tdap during each pregnancy irrespective of the patient’s prior history of receiving Tdap. To maximize the maternal antibody response and passive antibody transfer to the infant, optimal timing for Tdap administration is between 27 and 36 weeks’ gestation (preferably early in that window). For more information, see, pages 22–23.

Last reviewed: March 31, 2022

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