Get Virtual Care
  • Primary Care
  • Urgent Care
  • FAQs
  • Support Center
For Businesses
  • Direct Primary Care for Organizations
  • For DMEs and Pharmacies
  • For Health Plans
  • For Providers
About Us
  • Who We Are
  • Why HealthTap
  • Our Standards
  • Contact
Log in
Book a video appointment
Book now
  • Get Virtual Care

    • Primary Care
    • Urgent Care
    • FAQs
    • Support Center
  • For Businesses

    • Direct Primary Care for Organizations
    • For DMEs and Pharmacies
    • For Health Plans
    • For Providers
  • About Us

    • Who We Are
    • Why HealthTap
    • Our Standards
    • Contact
Log in to HealthTap
HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Might it happen that a hepatitis test tell you have had the vaccine even if there is no record of it?

A doctor has provided 1 answer
Dr. Jay Park answered

Yes: The presence of antibody against specific hepatitis antigen, e.g., anti-hepatitis b surface antigen.

Dr Ferguson and another doctor agreed

Answered 12/9/2013

5.2k views

Thank

Related Questions

A member asked:

My daughter of 6 yo take the vaccines dtap,mmrv and hepatitis A today, but I check her medical records and she had those vaccines from 2 years ago and Dr give it for her again . I would like to know if will have any side effects for take twice ?

3 doctors weighed in across 3 answers

A member asked:

Can hepatitis b vaccine taken when sgot and sgpt values are high and test for hep b non reactive ?

A doctor has provided 1 answer

A member asked:

Can a Pfizer covid vaccine given 1 week after risk exposure give false negative test results for syphilis and hepatitis b 12 weeks after risk exposure? Syp. RPR + WR test Hep. B. Hbsag + Hbsab Will body always produce enough ab and ag at 12 weeks?

4 doctors weighed in across 3 answers

A member asked:

Hello, I want to ask if i need a vaccine for hepatisis B if my Anti HBS is positive and hbs ag is negative, or do i need other tests too?

3 doctors weighed in across 2 answers

A member asked:

Why might someone get the hepatitis vaccine more than once?

A doctor has provided 1 answer

People also searched for:

Could you tell me what happens if you take hepatitis a vaccine twice by accident?
I did a blood test, HBS-Ab is 364& it said under 9 is negative,and HBS-Ag is negative,I took just one shot hepatitis vaccine 9years ago,Am I positive?
Please tell me, could a patient of high sgpt take hepatitis b vaccine?
Should I ask a petiential girlfriend who had relationship with a man with hepatitis B to do a test before starting a relationship? P.S. How long does hepatitis vaccine immunity lasts? when needs a booster? what's the name of the vaccine?
If a person gets vaccine/immunoglobulin for Hepatitis B without first being tested for if they had it in the past, can any future tests show whether they had Hep B in the past? Can they find out if they had it in the past even if it didn't become chronic?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
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 question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
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.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited

For Businesses

Direct Primary Care for OrganizationsFor DMEs and PharmaciesFor Health PlansFor Providers

Company

About UsSupport CenterContact Us

Health Content

Health TopicsDoctor Q&A by Specialty

Join Us

For DoctorsJobs
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.