Get Virtual Care
For Businesses
About Us
A member asked:
What are second and third doses of vaccines for? why can't the whole dose be administered at once?
A doctor has provided 1 answer
Priming the pump: For some diseases (smallpox) a single vaccine dose given to someone with a mature immune system confers lifelong immunity. For infants with a new immune system, and for many bacterial diseases (pertussis,tetanus) the protection is transient and boosters must be given.When perfecting a new vaccine, they must gather data to see which ones need boosters or not.It varies,depending on the immune system
Answered 11/16/2014
3.6k views
Thank
Related Questions
A member asked:
Does the 2 to 3 weeks wait period before the vaccine kicks in applies also for after the third dose of Gardasil 9? Or are you protected instally after
A doctor has provided 1 answer
A member asked:
Can I inject third dose of Hepatitis B vaccine after 1 yr of first dose?
A doctor has provided 1 answer
A member asked:
I only hd 2 dse hep B vacc 4 yrs ago. Now my anti hbs titer is only 30( cut off value is 10). Do i need to get a third dose or just a booster vaccine?
A doctor has provided 1 answer
People also searched for:
Could you tell me what are second and third doses of vaccines for?
How much does the sinopharm vaccine protect against the delta variant ? And if you took two doses of sinopharm , should you take a third one ?
Hello Are two doses of heb b vaccine sufficient for my wife before marriage? The third dose after two months from the date of marriage Thank you
If I missed the third dose of hepatitis b vaccine for 5 months should I repeat it?
Is taking three sinopharm covid vaccine doses equal in efficacy to two Pfizer doses ? How long after the third sinopharm can someone take another vaccine ?
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
