Tetanus Immunization Recommendations for 12-Year-Olds
A 12-year-old should receive a single dose of Tdap (tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis) vaccine as recommended by the Advisory Committee on Immunization Practices (ACIP). 1
Specific Recommendations for 12-Year-Olds
- The Tdap vaccine should be administered at age 11-12 years, even if the child has completed the childhood DTaP series 1, 2
- This dose replaces the traditional Td (tetanus and diphtheria) booster that was previously recommended at 14-16 years of age 1
- Two FDA-approved Tdap vaccines are available:
- Boostrix (approved for persons aged ≥10 years)
- Adacel (approved for persons aged 10-64 years) 1
Catch-Up Vaccination Scenarios
For 12-year-olds with incomplete immunization histories:
- If the child has not received any previous tetanus-containing vaccines, they should begin a catch-up series with Tdap as the first dose 1
- If the child previously received Tdap between ages 7-10 years as part of a catch-up series, they should still receive the routine adolescent Tdap dose at age 11-12 years 1
- The vaccine series does not need to be restarted regardless of the time elapsed between doses 1
Contraindications and Precautions
- Absolute contraindications: Severe allergic reaction (anaphylaxis) to a previous dose or vaccine component
- Precautions:
- Moderate or severe acute illness
- History of Guillain-Barré syndrome within 6 weeks of a previous tetanus toxoid-containing vaccine
- Progressive neurologic disorder, uncontrolled epilepsy, or progressive encephalopathy 1
Clinical Pearls and Common Pitfalls
Don't miss the opportunity: The 11-12 year visit is an excellent opportunity to provide Tdap along with other recommended adolescent vaccines (meningococcal conjugate, HPV) 2
Avoid unnecessary delays: Delaying Tdap vaccination leaves adolescents vulnerable to pertussis, which has been increasing in incidence among adolescents 3
Simultaneous administration is safe: Tdap can be administered with other adolescent vaccines during the same visit, which increases the likelihood of completing all recommended vaccinations 2
Post-vaccination monitoring: Observe the adolescent for 15-20 minutes after vaccination to monitor for syncope (fainting), which occurs more frequently in adolescents 2
Common error to avoid: If DTaP is inadvertently administered to a 12-year-old instead of Tdap, this dose should count as the Tdap dose, and the person should not receive an additional dose of Tdap 1
Future Booster Doses
After receiving Tdap at age 11-12 years, subsequent tetanus and diphtheria protection should be maintained with Td boosters every 10 years throughout life 1
The implementation of adolescent Tdap vaccination is critical for reducing pertussis morbidity and maintaining protection against tetanus and diphtheria, as pertussis is one of the only vaccine-preventable diseases with increasing incidence in the United States 3, 4.