ArticleApplied and environmental microbiology2009
Virulence genes and molecular typing of different groups of Escherichia coli O157 strains in cattle.
Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.
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Who cites it
22 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.
- Regional variation in the prevalence of E. coli O157 in cattle: a meta-analysis and meta-regression.PloS one · 2014Pooled it
- Characterisation of new anti-O157 bacteriophages of bovine origin representing three genera.Archives of microbiology · 2022Article
- Genomic Diversity, Virulence Gene, and Prophage Arrays of Bovine and Human Shiga Toxigenic and EnteropathogenicFrontiers in microbiology · 2022Article
- Genomic analysis of Shiga toxin-producing Escherichia coli O157:H7 from cattle and pork-production related environments.NPJ science of food · 2021Article
- MALDI-TOF MS Based Typing for Rapid Screening of Multiple Antibiotic ResistanceFoods (Basel, Switzerland) · 2021Article
- Complete Genome Sequences of Novel Bovine T4, rv5-Like, and Dhillonviruses Effective against Escherichia coli O157.Microbiology resource announcements · 2021Article
- Genome Analysis of a HistoricalFrontiers in microbiology · 2020Article
- Toxigenic properties and stx phage characterization of Escherichia coli O157 isolated from animal sources in a developing country setting.BMC microbiology · 2018Article
- Variability in CharacterizingMicroorganisms · 2018Article
- Identification and Characterization of T5-Like Bacteriophages Representing Two Novel Subgroups from Food Products.Frontiers in microbiology · 2018Article
- Review
- Comparative genomic analysis of a multiple antimicrobial resistant enterotoxigenic E. coli O157 lineage from Australian pigs.BMC genomics · 2015Article
- Use of virulence determinants and seropathotypes to distinguish high- and low-risk Escherichia coli O157 and non-O157 isolates from Europe.Epidemiology and infection · 2014Article
- Molecular characterization of cytolethal distending toxin gene-positive Escherichia coli from healthy cattle and swine in Nara, Japan.BMC microbiology · 2014Article
- Sequence variability of P2-like prophage genomes carrying the cytolethal distending toxin V operon in Escherichia coli O157.Applied and environmental microbiology · 2013Article
- The long polar fimbriae operon and its flanking regions in bovine Escherichia coli O157:H43 and STEC O136:H12 strains.Pathogens and disease · 2013Article
- Draft Genome Sequence of an Escherichia coli O157:H43 Strain Isolated from Cattle.Genome announcements · 2013Article
- Article
- Escherichia coli O157:H7: animal reservoir and sources of human infection.Foodborne pathogens and disease · 2011Review
- Survival of Escherichia coli in the environment: fundamental and public health aspects.The ISME journal · 2011Review
Corrections and comments
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Authors and funding
9 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Characterization of an Escherichia coli O157 strain collection (n = 42) derived from healthy Hungarian cattle revealed the existence of diverse pathotypes. Enteropathogenic E. coli (EPEC; eae positive) appeared to be the most frequent pathotype (n = 22 strains), 11 O157 strains were typical enterohemorrhagic E. coli (EHEC; stx and eae positive), and 9 O157 strains were atypical, with none of the key stx and eae virulence genes detected. EHEC and EPEC O157 strains all carried eae-gamma, tir-gamma, tccP, and paa. Other virulence genes located on the pO157 virulence plasmid and different O islands (O island 43 [OI-43] and OI-122), as well as espJ and espM, also characterized the EPEC and EHEC O157 strains with similar frequencies. However, none of these virulence genes were detected by PCR in atypical O157 strains. Interestingly, five of nine atypical O157 strains produced cytolethal distending toxin V (CDT-V) and carried genes encoding long polar fimbriae. Macro-restriction fragment enzyme analysis (pulsed-field gel electrophoresis) revealed that these E. coli O157 strains belong to four main clusters. Multilocus sequence typing analysis revealed that five housekeeping genes were identical in EHEC and EPEC O157 strains but were different in the atypical O157 strains. These results suggest that the Hungarian bovine E. coli O157 strains represent at least two main clones: EHEC/EPEC O157:H7/NM (nonmotile) and atypical CDT-V-producing O157 strains with H antigens different from H7. The CDT-V-producing O157 strains represent a novel genogroup. The pathogenic potential of these strains remains to be elucidated.
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