The Hepatitis B Antibody Test is a blood test that checks for the presence of antibodies to the Hepatitis B virus (HBV) in your blood. This test helps determine if you have immunity against the virus, either due to prior infection or vaccination.
There are two key types of antibodies:
- Hepatitis B Surface Antibody (anti-HBs): This antibody is produced in response to the Hepatitis B virus or following vaccination. A positive result indicates immunity to the virus, either from a past infection or successful vaccination.
- Hepatitis B Core Antibody (anti-HBc): This antibody indicates a past or current infection with the Hepatitis B virus. A positive result may indicate that you’ve been exposed to the virus, even if you’re no longer infected.
Why It’s Important:
The Hepatitis B Antibody Test is typically used to:
- Check Immunity: To see if you are immune to Hepatitis B, either from vaccination or previous infection.
- Determine Vaccine Response: After receiving the Hepatitis B vaccine, this test can confirm if the vaccine was effective in generating an immune response.
- Monitor Health: In individuals who have had Hepatitis B in the past or are at risk, the test can help monitor if they have cleared the virus or if they are still at risk for complications.
- Screening Before Pregnancy: Hepatitis B testing is often recommended for pregnant women to prevent transmission of the virus to the baby.
