How long tt cvaccine work in body after administration
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tetanus vaccine AND immunity
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CDC tetanus vaccine duration protection booster 10 years
Assuming you mean the tetanus vaccine (TT/Td/Tdap):
- After a booster dose, your immune system begins increasing protection within about 1-2 weeks.
- In someone who has completed the recommended initial vaccine series, protection is considered to last about 10 years, so a Td or Tdap booster is recommended every 10 years.
- For a dirty or major wound, a booster may be needed if it has been 5 or more years since the last tetanus-containing vaccine.
- If you have never completed the initial series, one injection does not give reliable long-term protection. You need the full scheduled series.
For a new wound, seek medical assessment promptly if it is deep, contaminated, puncture-type, animal-related, or you are unsure of your vaccine history. CDC guidance supports 10-year routine boosters and a 5-year interval for tetanus-prone wounds. CDC tetanus guidance
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