| serological cross-reaction between the lipopolysaccharide o-polysaccharaide antigens of escherichia coli o157:h7 and strains of citrobcter freundii and citrobacter sedlakii. | a strain of citrobacter sedlakii showing serological cross-reaction with escherichia coli o157 antisera was demonstrated to produce a lipopolysaccharide o-antigen having an identical structure with that of the e. coli o157 o-antigen. a strain of citrobacter freunndii showing similar cross-reaction with e. coli o157 specific monoclonal antibody was shown to produce a lipopolysaccharide o-antigen composed of a trisaccharide repeating unit having the structure [ 2)-alpha-d rhap-(1-3)-beta-d-rhap-(1 ... | 2000 | 10981707 |