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    Hepatitis B: Postvaccination Test for Immunity - 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.

    Recommended Related to Hepatitis

    Fatty Liver Disease

    Some fat in your liver is normal. But if it makes up more than 5%-10% of the organ's weight, you may have fatty liver disease. If you're a drinker, stop. That's one of the key causes of the condition. There are two main types of fatty liver disease: Alcoholic liver disease (ALD) Nonalcoholic fatty liver disease (NAFLD) You can also get fatty liver disease during pregnancy.

    Read the Fatty Liver Disease article > >

    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.

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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