the incidence of s.m . antibody was highest during the first month after the onset of symptoms , and the antibody was preponderantly igm at this stage.s.m . antibody and hepatitis-associated antigen occurred independently , and unlike hepatitis-associated antigen , which was strongly associated with possible parenteral exposure to infection , the incidence of s.m . antibody was not related to the presumed mode of exposure .
C0003241
antibody
C0020861
igm