Get Virtual Care
For Businesses
About Us
A member asked:
I'm wondering why are three injections needed for a vaccine?
A doctor has provided 1 answer
Biological memory: During development of a vaccine various protocols are developed looking at the best way to give lasting immunity when a vaccine if initially found helpful. If a single dose will do it, the effort stops there. If they find that immunity is temporary after a single dose, they test different booster patterns(number & spacing) until they come up with one that works for the most people.
Answered 5/22/2013
5.1k views
Thank
Related Questions
A member asked:
My son is three and a half years old and is not fully up to date on his vaccines. Can my child have oral surgery on friday?
5 doctors weighed in across 3 answers
A member asked:
HI. Regarding rabies vaccines, I have heard that if have received three or more in would not require anymore in your lifetime. Is this true?
3 doctors weighed in across 2 answers
A member asked:
Hello I have taken sinopharm vaccine for covid 19 for three doses , But as i heared i should to take pfizer so i can travel to USA , how many month should i wait before i get the pfizer vaccine?
4 doctors weighed in across 2 answers
People also searched for:
Three injections of the vaccine (cervical cancer) are given. Why is this?
Docs, wanted to know if I can get three live vaccines administered at the same time?
Why does my child need several injections of the same vaccines?
Why would my child need multiple injections of the same vaccines?
Can the dpat vaccine be given as 3 separate injections for babies?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
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.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
