Marker for active HBV ?: (A) HBsAg, (B) HBcAg, (C) JgM anti HBSAg, (D) IgG anti HBSAg
Answer is A. <P>Davidson&;s principles and practice of medicine 22nd edition. *HBs Ag is an indicator of active infection and a negative test for HBs Ag makes HBV infection very unlikely.HBcAg is not found in blood but antibody to it appeared in the blood.</p>