that a population of antibodies reactive toward the degalactosylated polysaccharide is present in both type ia and type ib antisera suggests that the iabc cross-reacting determinant is due to the presence of serum antibodies reactive with this trisaccharide repeating unit , which is shared by both the type ia and the type ib native and core polysaccharides .
C0003241
antibodies
C0020960
antisera