The Hepatitis B Surface Antigen (HBsAg) blood test is a key report that indicates if someone has chronic hepatitis B.
Here's a breakdown:
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Hepatitis B Surface Antigen (HBsAg): This blood test specifically determines if the hepatitis B virus is present in your body. A positive result typically means you have a current hepatitis B infection, either acute or chronic. This is the only blood test that definitively shows if you have chronic hepatitis B.
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Hepatitis B Surface Antibody (Anti-HBs): This test indicates whether you are protected against hepatitis B, either from vaccination or past infection. It doesn't show active hepatitis.
In summary, the HBsAg report is the primary indicator of hepatitis B infection.