| HBsAg |
Hepatitis B surface antigen |
A marker of infectivity. A positive test indicates either acute or chronic HBV infection. |
Anti-HBs
(also know as HbsAb) |
Antibody to hepatitis B surface antigen |
A marker of immunity. A positive test indicates an immune response to vaccination or HBV infection, or the presence of passively obtain immunity. |
| anti-HBc (total) |
Antibody to hepatitis B core antigen |
anti-HBc (total) Antibody to hepatitis B core antigen A non-specific test for acute, chronic, or resolved hepatitis B. It's not a marker of vaccine-induced immunity. It may be used before giving the hepatitis B vaccine to determine previous exposure to HBV infection. |
| IgM anti-HBc |
IgM antibody subclass of Anti-HBc |
IgM anti-HBc IgM antibody subclass of Anti-HBc A positive result indicated a recent infection (æ 6 months). Used to test for an acute infection. |
| HBeAg |
Hepatitis B "e" antigen |
HBeAg Hepatitis B "e" antigen A marker of a high degree of HBV infectivity. Levels correlate well with levels of HBV replication. It's used to follow clinical management of patients with chronic HBV infections. |
| Anti-HBe |
Antibody to hepatitis "e" antigen |
Anti-HBe Antibody to hepatitis "e" antigen May be present in people with a HBV infection or immunity. In a person with chronic HBV infection, a positive level suggests low viral load and low infectivity. |
| HBV-DNA |
HBV DNA |
HBV-DNA HBV DNA A marker of viral replication and correlates well with infectivity. It's used to monitor the treatment of patients with chronic HBV infection. |
