Health Library

The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.

Hepatitis B Postvaccination Test

  • 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...

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