Tdap/Td
Tetanus, diphtheria, pertussis (Tdap / Td)
Indications
1 dose Tdap if never received, then Td or Tdap booster every 10 years; 1 dose Tdap each pregnancy (preferably 27–36 weeks).
Doses
- Dose 1: Once (if no prior Tdap)
- Dose 2: Booster every 10 years
Contraindications
- Encephalopathy within 7 days after previous pertussis-containing vaccine (for Tdap).
Sources
- • CDC Adult Schedule 2025 — Tdap/Td (2025)