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What does it mean if your Hep B titer is high?
A positive HBsAg test result means that you are infected and can spread the hepatitis B virus to others through your blood. anti-HBs or HBsAb (Hepatitis B surface antibody) – A “positive” or “reactive” anti-HBs (or HBsAb) test result indicates that a person is protected against the hepatitis B virus.
What if my hep B titer is low?
If the test shows the titer is less then 10 mIU/mL the general recommendation is to complete the series again using a different brand of vaccine (e.g. if you received Engerix B, the first time, switch to Recombivax the 2nd time or vice-versa).
Should my hep B titer be positive or negative?
Negative. If your HBsAb test is negative, it can mean many different things—but, in general, it means you are not immune to the Hepatitis B virus. If your HBsAb test is negative, your healthcare provider may recommend getting the vaccine.
How long do Hep B antibodies last?
Understand that hepatitis B vaccination-induced protective antibodies can last for up to 15 years, but appear to fall off over time. Patients who were vaccinated 10 to 15 years ago, especially those who were vaccinated as children, may not be adequately protected.
What are normal titer levels?
The normal values of an antibody titer depend on the type of antibody. If the testing is done to detect autoantibodies, the normal value should essentially be zero or negative. In the case of testing the efficacy of a vaccine, the normal test result depends on the definite value that is specific for that immunization.
What is a titer test?
Definition. Antibody titer is a laboratory test that measures the level of antibodies in a blood sample.
How long after Hep B vaccine do you get a titer?
If you wish to ensure you have generated adequate immunity, and are protected, you can have your anti-HBs (HBsAb) titres checked 4-8 weeks following the last shot of the hepatitis B vaccine series.
What does it mean if the anti-HBs is negative?
A negative test result indicates the virus may not be actively reproducing in the liver. In general, a person is considered very infectious when the test is positive, and less infectious when the test is negative. The loss of e-Antigen can occur naturally or as a result of drug treatment.