Interpretation of Hepatitis B Panel
			HBsAg       negative antiHBc       negative     susceptible antiHBs       negative
			HBsAg       negative antiHBc       positive     immune due to natural infection antiHBs       positive
			HBsAg       negative antiHBc       negative     immune due to vaccine antiHBs       positive
			HBsAg       positive antiHBc       positive     acutely infected IgM antiHBc     positive antiHBs       negative
			HBsAg       positive antiHBc       positive     chronically IgM antiHBc     negative     infected antiHBs       negative
			HBsAg       negative antiHBc       positive     four possible interpretations antiHBs       negative     (see next slide)