Hepatitis B Nomenclature
and/or Lab Tests (1)
• HBV: Hepatitis B virus.
• HBsAg:   Hepatitis B surface antigen. Marker of
infectivity when found in serum.
• anti-HBs: Antibody to HBsAg. Marker of immunity
when found in serum.
• HBcAg: Hepatitis B core antigen. No commercial
test available for this.
• anti-HBc: Antibody HBcAg. Marker of past or
current infection.