Uzm. Dr. Hasan Keleş- September 5, 2026
- 2 min read
- Vaccines
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Tetanus is caused by a toxin released by a bacterium found widely in soil and dust. The only way to be protected is vaccination; having the illness leaves no immunity. The most frequently asked question is how often the booster is needed.
The short answer: every 10 years
If the childhood vaccination schedule has been completed, a booster dose every 10 years is advised so that protection continues. That is the general rule for a healthy adult.
But it is not the only rule. If there is a dirty wound, the interval shortens.
How is the decision made after an injury?
Three pieces of information decide it: the type of wound, the date of the last dose, and whether the schedule was ever completed.
| Situation | Time since last dose | Approach |
|---|---|---|
| Clean, superficial wound | Less than 10 years | No extra dose needed |
| Clean, superficial wound | More than 10 years | Booster dose |
| Dirty, deep wound in contact with soil | Less than 5 years | No extra dose needed |
| Dirty, deep wound in contact with soil | More than 5 years | Booster dose |
| Schedule never completed or unknown | — | Schedule planned from the start; immunoglobulin added if needed |
This is why knowing when your last tetanus vaccine was given speeds up the decision when you go to the emergency department.
How does the schedule work in children?
In childhood, tetanus is not given on its own but inside combination vaccines:
- 2, 4 and 6 months — inside the 6-in-1 (hexavalent) vaccine
- 18 months — booster
- 48 months (4 years) — repeat with DTaP-IPV
- Age 13 — one further booster dose with Td
Once this schedule is complete, protection is strong; after that it is maintained at 10-year intervals. You can find the full schedule on the 2026 vaccination schedule page.
If a dose is late, do you start over?
No. No vaccination schedule is restarted because of a delay; it continues from where it left off. Only if no vaccine was ever given or no record can be found is the person treated as unvaccinated and the schedule planned from the beginning.
Side effects
They are usually mild: pain, redness and swelling at the injection site, sometimes tiredness and a slight fever lasting a day. Tenderness in the arm for a few days is an expected response. A high fever, a widespread rash or shortness of breath should be reported to a doctor. Expected and unexpected findings after vaccination are covered in detail in the fever and side effects after vaccination article.
In summary
In a healthy adult, the tetanus booster is every 10 years. With a dirty wound that interval drops to 5 years. In childhood it is given inside combination vaccines, and protection is strong once the schedule is complete. The most practical precaution is knowing the date of your last dose, or checking it in your e-Nabız record.
Frequently Asked Questions
Once the childhood schedule is complete, a booster dose every 10 years is advised to maintain protection. If there is a dirty wound and more than 5 years have passed since the last dose, an extra dose may be needed even before the 10 years are up.
In the national schedule it is given inside the 6-in-1 (hexavalent) vaccine at 2, 4 and 6 months, boosted at 18 months, and repeated with DTaP-IPV at 48 months (4 years). A further Td booster is given at age 13.
Not after every injury. The decision depends on whether the wound is clean or dirty, how deep it is, and when the last tetanus dose was given. Telling your doctor these three things speeds up the decision.
If no record can be found, the person is treated as unvaccinated and the schedule is planned from the beginning. Past vaccination records can be checked through e-Nabız; if a record exists, there is no need to start over.
Yes. The dose given in pregnancy protects both the mother and the baby during the first months after birth; it is effective in preventing newborn tetanus. The timing is planned by the doctor following the pregnancy.
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