U.S. doctors online nowAsk doctors free
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.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership

Related questions

A 32-year-old member asked:
3 doctor answers4 doctors weighed in
A 45-year-old member asked:
2 doctor answers3 doctors weighed in
A 37-year-old member asked:
1 doctor answer4 doctors weighed in
A 21-year-old member asked:
2 doctor answers8 doctors weighed in
A 34-year-old member asked:
1 doctor answer1 doctor weighed in
Last updated Apr 7, 2019


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.