2 doctors weighed in:

How long does your body remember a tetanus shot?

2 doctors weighed in
Dr. Martin Raff
Internal Medicine - Infectious Disease
1 doctor agrees

In brief: Ten years

Ten years is the recommended time period for repeat immunization with tetanus toxoid.
If, however, in the intervening time period you sustain a serious injury with the potential for introducing Clostridium tetani into your wounds, you should have repeat immunization if it has been five years since the last. Clinical tetanus remains a rare disease in the USA.

In brief: Ten years

Ten years is the recommended time period for repeat immunization with tetanus toxoid.
If, however, in the intervening time period you sustain a serious injury with the potential for introducing Clostridium tetani into your wounds, you should have repeat immunization if it has been five years since the last. Clinical tetanus remains a rare disease in the USA.
Dr. Martin Raff
Dr. Martin Raff
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