Finding the right tests…
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Finding the right tests…
Hormonal
HBeAb, also called anti-HBe, is an antibody your immune system makes against the hepatitis B e-antigen. This blood test checks for it in people who already have, or have had, a hepatitis B infection. Its presence generally means the virus has moved into a lower-replication phase, which is why doctors track the switch from HBeAg-positive to HBeAb-positive, called e-antigen seroconversion, as a sign the infection may be settling down. It doesn't mean the virus is completely gone, and it's read together with HBeAg, HBsAg, and HBV DNA levels rather than on its own.
The test looks for anti-HBe antibodies in a blood sample. A positive result, especially after a period of testing positive for HBeAg, usually points to declining viral replication and lower infectivity. Your doctor typically orders it alongside HBeAg and HBV DNA testing to track how an existing hepatitis B infection is behaving over time, rather than as a stand-alone check.
Hepatitis B virus infection is tracked using several blood markers, and HBeAg and HBeAb (anti-HBe) are one linked pair among them. HBeAg shows up when the virus is actively multiplying in the liver; HBeAb is the antibody the immune system produces as that replication slows down.
- The infection has likely moved from a high-replication phase to a lower-replication phase - This shift, from HBeAg-positive to HBeAb-positive, is called e-antigen seroconversion - Seroconversion is generally seen as a favourable sign in someone with chronic hepatitis B, though it does not mean the virus is cleared
HBeAb on its own doesn't give a full picture. Doctors read it together with HBsAg, which confirms active infection, HBeAg, and often HBV DNA levels, to judge how active the virus currently is and whether treatment is working. Someone can seroconvert to HBeAb and later revert to HBeAg-positive if the virus reactivates, so this isn't necessarily a one-way, permanent change. If you're being monitored for chronic hepatitis B, your doctor will likely repeat this panel periodically rather than relying on a single result.
A positive HBeAb (anti-HBe) usually means the hepatitis B virus has moved into a lower-replication phase, often after previously testing positive for HBeAg. It's generally read as a favourable sign, though it doesn't mean the infection is cured.
Not completely. It usually means lower viral activity and lower infectiousness compared to an HBeAg-positive result, but it doesn't rule out infectiousness entirely. Your doctor will look at your full hepatitis B panel, including HBsAg, to assess this properly.
Testing both shows whether the infection has shifted from a high-replication, HBeAg-positive phase to a lower-replication, HBeAb-positive phase, a change called seroconversion. This shift helps your doctor judge how active the infection currently is.
This page is general information about the test, not medical advice. Your own report's reference ranges apply — please discuss your results with your doctor.
No special fasting is usually required for this blood test. Confirm the details with your doctor or the centre when you book.
Yes, in some people the virus can reactivate after seroconversion, so ongoing monitoring matters even after a favourable HBeAb result. Your doctor will decide how often to repeat testing based on your history.
No, they're different markers. Anti-HBs (surface antibody) usually reflects immunity from vaccination or past clearance of infection, while HBeAb (anti-HBe) is specifically linked to how actively the virus is replicating in someone who has hepatitis B.
It's mainly used in people already diagnosed with hepatitis B, to help track the course of the infection or monitor treatment. It isn't usually part of a first-time hepatitis B screening panel.