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FEMS Microbiol Lett. 2005 Aug 15;249(2):335-42.

Characterization of two major groups of diarrheagenic Escherichia coli O26 strains which are globally spread in human patients and domestic animals of different species.

Author information

1
Division of Microbial Toxins, Department of Biological Safety, Robert Koch Institute, D-13353 Berlin, Germany.

Abstract

Twenty-three Escherichia coli O26 strains from humans, cattle, sheep, pigs and chicken were investigated for virulence markers and for genetic similarity by pulsed field gel electrophoresis and multi locus sequence typing. Two groups of genetically closely related O26 strains were defined. One group is formed by enteropathogenic (EPEC) and enterohemorrhagic (EHEC) E. coli strains, which do not ferment rhamnose and dulcitol and most of these carry a plasmid encoding enterohemolysin. The other group consists of rhamnose and dulcitol fermenting EPEC strains, which carry plasmids encoding alpha-hemolysin. Multiple species of domestic animals were shown to serve as a reservoir for human pathogenic O26 EPEC and EHEC strains.

PMID:
16046083
DOI:
10.1016/j.femsle.2005.06.030
[Indexed for MEDLINE]
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