The Tdap vaccine is typically given as follows:
- For infants and young children, the primary series is the DTaP vaccine given in 5 doses at 2, 4, and 6 months, 15 through 18 months, and 4 through 6 years of age.
- Adolescents usually receive a single dose of Tdap at 11 to 12 years of age.
- Pregnant women are recommended to receive one dose of Tdap during each pregnancy, ideally between 27 and 36 weeks of gestation.
- Adults who have never received Tdap should get a single dose as soon as feasible.
- After receiving Tdap, adults should get a Td or Tdap booster every 10 years.
In summary, Tdap is given once in adolescence, once during each pregnancy, once as a single dose to adults who never received it, followed by booster doses every 10 years for adults.
