<prompt> HBV replication is indicated by -HBV DNADNA polymeraseHBeAgIgMAnti-HBc  <response>: Hepatitis B e antigen Hepatitis B e antigen HBeAg is an indicator of viral replication. In acute hepatitis B it may appear only transiently at the outset of the illness; its appearance is followed by the production of antibody anti-HBe. The HBeAg reflects active replication of the virus in the liver. Chronic HBV infection see below is marked by the presence of HBsAg and anti-HBc IgG in the blood. Usually, HBeAg or anti-HBe is also present; HBeAg indicates continued active replication of the virus in the liver. The absence of HBeAg usually implies low viral replication; the exception is HBeAg-negative chronic hepatitis B also called pre-core mutant infection, , in which high levels of viral replication, serum HBV-DNA and hepatic necroinflammation are seen, despite negative HBeAg. Ref Davidson edition23rd pg 875 