DTaP/Tdap Vaccination: Recommendations of the Advisory Committee on Immunization Practices37–39
| Dose | Age | Minimum Interval |
|---|---|---|
| Routine Primary Immunization of Infants | ||
| 1 | 2 months | – |
| 2 | 4 months | 4 weeks |
| 3 | 6 months | 4 weeks |
| 4 | 15 to 18 months* | 6 months |
| 5 | 4 to 6 years† | |
| Booster dosing of adolescents: | 11 to 12 years | – |
| 13 to 19 years‡ | ||
| Dosing of Adults§ | ||
| All adults who expect to be in close contact with a vulnerable infant | 19 to 64 years | |
| Health care personnel | 19 to 64 years |
* May be given at 12 months.
† If 4th dose given before age 4 years.
‡ Catch-up vaccination recommended if Td not received at 11 to 12 years; vaccination with Tdap encouraged for those who received Td at 11 to 12 years with a 5-year interval between Td and Tdap.
§ A single dose of Tdap booster to replace the next scheduled dose of tetanus diphtheria vaccine.
¶Infant who has not received 2 to 3 doses of DTaP.