Structural elucidation of the O-antigenic polysaccharide from the enteroaggregative Escherichia coli strain 180/C3 and its immunochemical relationship with E. coli O5 and O65

→2)-β-D-Quip3NAc-(1→3)-β-D-Ribf-(1→4)-β-D-Galp-(1→3)-α-D-GalpNAc-(1→