The enterohemorrhagic pathotype represents a minor proportion of the Escherichia coli O103 strains shed in the feces of cattle. We report here the genome sequences of 43 strains of enterohemorrhagic E. coli (EHEC) O103:H2 isolated from feedlot cattle feces. The genomic analysis will provide information on the genetic diversity and virulence potential of bovine EHEC O103.

Escherichia coli EDL933 is the prototypic strain for enterohemorrhagic E. coli serotype O157:H7, associated with deadly food-borne outbreaks. Because the publicly available sequence of the EDL933 genome has gaps and >6,000 ambiguous base calls, we here present an updated high-quality, unambiguous genome sequence with no assembly gaps.

Enteropathogenic and Enterohemorrhagic Escherichia coli Virulence Gene Regulation Jay L. Mellies,* Alex M. S. Barron, and Anna M. Carmona Biology Department, Reed College, 3203 S.E. Woodstock Boulevard, Portland, Oregon 97202; Oregon Health Sciences University, L215, 3181 S.W. Sam Jackson Park Rd., Portland, Oregon 97239; and School of Public Health, University of California, Berkeley, 140 Warr...

Transcription of the locus of enterocyte effacement (LEE) genes in enterohemorrhagic Escherichia coli (EHEC) is regulated by the LEE-encoded Ler and GrlR/GrlA proteins as well as the non-LEE-encoded regulator QseA. This work demonstrates that GrlR/GrlA activate LEE2 transcription in a Ler-independent fashion, whereas transcription of grlRA is activated by QseA in both Ler-dependent and -indepen...

Pan African Medical Journal. 2014; 19:26 doi:10.11604/pamj.2014.19.26.4825 This article is available online at: http://www.panafrican-med-journal.com/content/article/19/26/full/ © Mohamed Ahmed et al. The Pan African Medical Journal ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0),...

*Corresponding author: Mailing address: Ishikawa Prefectural Institute of Public Health and Environmental Science, 1-11 Taiyohgaoka, Kanazawa 920-1154, Japan. E-mail: hokan-04@ pref.ishikawa.jp On July 7, 2004, a health center in Kanazawa City received a report of enterohemorrhagic Escherichia coli (EHEC) O111 (VT1 and 2) infection. The patient was a high school student who participated in a sc...

Enterohemorrhagic Escherichia coli (EHEC) strains require intimin to induce attaching and effacing (A/E) lesions in newborn piglets. Infection of newborn calves with intimin-positive or intimin-negative EHEC O157:H7 demonstrated that intimin is needed for colonization, A/E lesions, and disease in cattle. These results suggest that experiments to determine if intimin-based vaccines reduce O157:H...

We analyzed the prevalence of diarrheagenic Escherichia coli (DEC) markers and common phenotypes in 2,164 E. coli isolates from 282 DEC-positive samples. Enteropathogenic E. coli (EPEC) and enteroaggregative E. coli (EAEC) were very diverse and were not correlated with diarrhea. Enterotoxigenic E. coli (ETEC) estA and enterohemorrhagic E. coli (EHEC) belonged to a few phenotypes and were signif...

We report the draft genome sequences of three enteropathogenic Escherichia coli (EPEC) isolates that display the O157 serogroup but do not have the Shiga toxin genes (stx), which are characteristic of O157 enterohemorrhagic E. coli (EHEC). E. coli strain RN587/1 has the O157:H8 serotype and possesses the EAF plasmid characteristic of typical EPEC (J. B. Kaper, J. P. Nataro, and H. L. Mobley, Na...