Interpretation of Hepatitis B Serologic Test Results | CDC
https://www.cdc.gov/hepatitis/hbv/HBV-RoutineTesting-Followup.htm
WEBHepatitis B surface antigen (HBsAg): A protein on the surface of hepatitis B virus that can be detected in high levels in serum during acute or chronic hepatitis B virus infection. The presence of HBsAg indicates that the person is infectious, except when it might be …
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