Test library
Hepatitis Immunity Test
Hepatitis immunity testing checks for protective antibodies against hepatitis A and hepatitis B after vaccination. It shows whether a vaccine series produced immunity or whether a person remains susceptible to infection.
Order Hepatitis Immunity Detection & Vaccine Testing
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Hepatitis Immunity Detection & Vaccine Testing- Typical turnaround
- 1-3 business days
- Starting price
- From $59
- Results
- Confidential, online
Quick answer
The Hepatitis Immunity Detection and Vaccine Testing uses a blood sample to measure antibodies that protect against hepatitis A and hepatitis B. It is commonly ordered to confirm that a vaccine series worked, to check immunity before travel or certain jobs, or to clarify whether past exposure left protection. The result indicates whether protective antibodies are present and does not test for active infection.
What this test measures
Hepatitis A and hepatitis B are viral infections that affect the liver. Effective vaccines exist for both, and vaccination causes the immune system to produce protective antibodies. Immunity detection measures those antibodies to confirm that a person is protected. A separate set of tests is used when active infection is suspected, so immunity testing answers a different question than a hepatitis infection panel.
The test uses a serum sample collected from a vein. For hepatitis B, laboratories measure antibody to hepatitis B surface antigen, which reflects vaccine-induced protection, and may also report antibodies to the core antigen, which can indicate past infection. For hepatitis A, total or IgG antibody against the virus is measured. The combination helps distinguish immunity from vaccination versus immunity from prior infection.
People often order this testing before international travel, before starting a job with possible blood or body fluid exposure, or when they are unsure whether they completed a vaccine series. It may also be used to follow up after vaccination. A healthcare provider interprets the results and can advise on whether additional doses or a different test are appropriate.
- Hepatitis A total antibody
- Hepatitis A IgG antibody
- Hepatitis B surface antibody (anti-HBs)
- Hepatitis B core antibody (anti-HBc)
- Hepatitis B surface antigen (HBsAg)
- Hepatitis B e antigen (HBeAg)
- Hepatitis B e antibody (anti-HBe)
- Hepatitis B core IgM antibody
Why people order this test
- Confirm that a hepatitis vaccine series produced immunity
- Check immunity before travel to areas where hepatitis is common
- Screen before work that may involve blood or body fluid exposure
- Clarify whether past exposure left protective antibodies
- Follow up after vaccination when completion is uncertain
- Provide documentation requested by an employer or program
How to prepare
No fasting is needed for this blood test. A sample is drawn from a vein, usually at the arm. Follow any timing instructions provided by the laboratory if the test is bundled with other panels.
Understanding your results
Results are usually available within one to three business days. The report shows whether protective antibodies are present for hepatitis A and hepatitis B, and it may note markers that suggest past infection. A qualified healthcare provider interprets the findings and advises on any next steps.
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Connecticut
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Florida
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Georgia
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Hawaii
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Idaho
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Frequently Asked Questions
What is the difference between hepatitis immunity testing and a hepatitis infection test?
Immunity testing measures protective antibodies, which reflect vaccination or past exposure. Infection testing looks for viral markers that show whether the virus is currently present. The two answer different questions.
How do I know if my hepatitis B vaccine worked?
The surface antibody result shows whether the vaccine produced protection. A healthcare provider reviews the level and can advise if another dose or a repeat check is appropriate.
Do I need to fast for this test?
No. This is a blood test that does not require fasting unless it is combined with other tests that do.
Can the test tell if I had hepatitis in the past?
Some markers, such as hepatitis B core antibody, can indicate past infection rather than vaccination. A provider interprets the full pattern of results.
How long does it take to get results?
Results are typically reported within one to three business days after the sample reaches the laboratory.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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Every page on this site is reviewed for clarity, sourcing, and accuracy. We update our library as testing options, collection networks, and accreditation standards change.