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Hepatitis B Surface AntibodymIU/mL
Hepatitis B surface antibody shows immunity to hepatitis B, from vaccination or past infection. Levels of 10 or more are usually read as protective.
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What Hepatitis B Surface Antibody measures
Hepatitis B surface antibody shows immunity to hepatitis B, from vaccination or past infection. Levels of 10 or more are usually read as protective.
If your Hepatitis B Surface Antibody is low
A hepatitis B surface antibody below the protective level is commonly associated with no vaccination, a vaccine response that has faded, or no past exposure.
Commonly associated with
- No vaccination
- Faded vaccine response
- No past exposure
If your Hepatitis B Surface Antibody is high
A high hepatitis B surface antibody is commonly associated with a strong response to vaccination or recovery from past infection, and is a favorable result.
Commonly associated with
- Vaccination
- Past infection that has cleared
Typical reference range
| Group | Typical range |
|---|---|
| Adults | over 10 mIU/mL |
Typical adult values used by many US labs. Your own report prints the range your lab validated for its method, and that range is the one that counts. Labwise always uses the printed range first.
If it is within range
Your hepatitis B surface antibody is at or above the level commonly read as protective.
Also listed as
Hep B Surface Ab, HBsAb, Anti-HBs, Hepatitis B Surface Ab, Quant, Hep B Surface Ab Quant, anti-HBs, Quantitative
Related tests
This page is general information about what a laboratory test measures and what results outside a reference range are commonly associated with. It is not medical advice, does not diagnose any condition and does not replace your clinician. Discuss your results with your healthcare provider.