Laboratory Tests

Anti-HBs

Anti-HBs is a blood test that looks for antibodies your immune system makes against the hepatitis B virus. These antibodies appear after successful vaccination or after recovering from a past infection.

A positive Anti-HBs result indicates protection against hepatitis B, which is reassuring and useful to know before travel or certain procedures. A low or negative result may suggest you are not immune, in which case vaccination can be discussed with your doctor.

This explanation is for general information and is not medical advice. Your results are always interpreted by a doctor.

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