HBV Serology Tool
Select marker results to see educational possibilities and next-step questions to discuss with a clinician.
Marker guide
- HBsAg
- Hepatitis B surface antigen. A positive result may suggest current HBV infection.
- Anti-HBs
- Hepatitis B surface antibody. Positivity may be seen after vaccination or recovery from past infection.
- Anti-HBc
- Hepatitis B core antibody. Positivity suggests past or current exposure to HBV; vaccination alone usually does not make it positive.
- HBeAg
- Hepatitis B e antigen. Often used with HBV DNA to assess viral replication.
- Anti-HBe
- Hepatitis B e antibody. Interpret together with HBeAg, HBV DNA, and liver tests.
Evidence sources
This tool is based on public health references in the OpenHBV source library. It organizes possible meanings only and cannot replace a clinician's judgment.
- CDC Hepatitis B Prevention and Control Centers for Disease Control and Prevention Open source page Open Markdown
- CDC Hepatitis B Testing and Diagnosis Centers for Disease Control and Prevention Open source page Open Markdown
- CDC Hepatitis B Vaccine Administration Centers for Disease Control and Prevention Open source page Open Markdown
- WHO Hepatitis B Fact Sheet World Health Organization Open source page Open Markdown