They gave me a result of the analysis for markers of hepatitis with. there is a stamp HBs Ag was not detected. what it means

Respond Tatyana Stepanova, a gastroenterologist, hepatologist HBsAg - a marker of hepatitis B. A on hepatitis C need to be tested - antibodies to hepatitis C. A similar question: Markers of hepatitis B 1.Anti HBs pos. 2.Anti ... Ag.gepatita surface in the negative ...