Hepatitis Guides
Hepatitis A, B, and C testing and immunity.
Hepatitis guides explain the tests used to check for hepatitis A, B, and C, and to confirm immunity after vaccination or past infection. A typical panel combines several markers, such as surface antigen, surface antibody, and core antibody.
Because each marker tells a different part of the story, whether current infection, past exposure, or protection, hepatitis results are read as a group rather than one at a time.
Hepatitis B and C can be present without symptoms for years, which is one reason screening is recommended for people with certain risk factors. Hepatitis A is usually short-lived and rarely causes long-term infection.
Vaccination status can be confirmed with an antibody test, which is useful for people in healthcare or travel settings. Screening panels can distinguish between an active infection and immunity, so the marker pattern matters as much as any single value.
Each guide explains what a positive or negative result generally means without diagnosing you, and how a clinician typically follows up an abnormal result with additional testing. Testing usually requires only a blood draw, with results generally available within a few business days.
These guides are educational and are not medical advice. If you may have been exposed to hepatitis, contact a qualified healthcare provider, since timely evaluation matters.
Hepatitis A Testing and Vaccination: What to Know
Hepatitis A testing and vaccination explained: what antibody tests show, who may need testing, and how to order hepatitis A testing near you
Hepatitis B Testing and Immunity: Markers Explained
Hepatitis B testing and immunity explained: what surface antigen, surface antibody, and core antibody markers mean and how to order testing
Hepatitis C Testing Explained: Antibody vs RNA
Hepatitis C testing explained: how antibody screening and RNA tests differ, what a reactive result means, and how to order hepatitis C testi