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    Hepatitis B: Postvaccination Test for Immunity

    Hepatitis B: Postvaccination Test for Immunity

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    Topic Overview

    A postvaccination test for immunity to the hepatitis B virus (HBV) is recommended only if you:

    • Have an impaired immune system . This can be caused by many things, such as infection with HIV or the use of medicines to prevent organ rejection.
    • Are older than age 49.
    • Received the hepatitis B vaccine in the buttock. (The vaccine is less effective when given in the buttock. It is more effective when given in the upper arm.)
    • May come in contact with other people's blood or body fluids as part of your job.
    • Are a sex partner of someone with chronic hepatitis B virus infection.

    Infants born to mothers who are infected with HBV should be tested at 9 to 15 months of age.

    With the exception of infants, a postvaccination test for immunity, when needed, should be done between 1 and 2 months after a person receives the last dose of vaccine.

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    ByHealthwise Staff
    Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
    Specialist Medical Reviewer W. Thomas London, MD - Hepatology

    Current as ofMay 22, 2015

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