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A 33-year-old member asked:

How does the dtap vaccine last?

2 doctor answers5 doctors weighed in
Dr. Yash Khanna
Family Medicine 58 years experience
DTAP VACCINE: Do you mean how long does the immunity last.Dtap vaccine is givento babies at 2, 4.6.15 months and a booster between 4 to 6 years that is a of series of 5 shots.Then at age 11 years we give a different combinatuin of the tetanus, diptheria and pertuses, and then a booster is needed every 10 years of tdap.If a child is properly immunised in childhood then it lasts for ten years and you need a booster.
Dr. James Ferguson
Pediatrics 47 years experience
Depends: If the patient has never received a dose, or is an infant with an immature immune system, the benefit of a single dose is variable.Months for the infant, and maybe a year or so for the adult. If a person (any age) has completed the primary series of childhood doses, the booster lasts 5-10 yrs.

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Last updated Apr 7, 2019

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