[Study on identification for the motility and flagella antigen of four international reference strains of Escherichia coli].

Authors identified four strains of Escherichia coli from Collaborative Centre for reference and research on Escherichia coli-Klebsiella (WHO) in Denmark. Our results were different from original record and reference. It was shown that strain H311b and H5 were motile strains, and its H antigen respectively is H11 and H27. The strain W27 is nonmotile. H antigen of the strain H511 is H40, not H8. Antigen formula of four strains respectively is 26:60:11 (strain H311b), 81:97:27 (strain H5), 115:-:- (strain W27), 102:-:40 (strain H511).