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- Shuai Zhi; Graham Banting; Paul Stothard; Nicholas J. Ashbolt; Sylvia Checkley; Kelsey Meyer; Simon Otto; Norman F. Neumann
- Water research 2019 v.156 pp. 208-222
- DNA repair; antibiotic resistance; biomarkers; enterohemorrhagic Escherichia coli; genes; geographical distribution; heat; oxidative stress; pathotypes; phylogeny; single nucleotide polymorphism; statistical analysis; stress response; uropathogenic Escherichia coli; virulence; wastewater; wastewater treatment; Canada; Switzerland; United States
- ... We previously demonstrated the existence of naturalized strains of E. coli in wastewater and herein perform an in-depth comparative whole genome analysis of these strains (n = 17). Fourteen of the Canadian E. coli strains, isolated from geographically separated wastewater treatment plants, were virtually identical at the core genome and were ≥96% similar at the whole genome level, suggesting clona ...
- Andreas Baumgartner; Isabel Niederhauser; David Diston; Dominik Moor
- Journal für Verbraucherschutz und Lebensmittelsicherheit 2016 v.11 no.4 pp. 353-357
- Shiga-like toxins; enterohemorrhagic Escherichia coli; food safety; foods; genes; intimin; karsts; quantitative polymerase chain reaction; springs (water); virulence; virulent strains; Switzerland
- ... Within 2 months, two water sources in a karst area in Switzerland were sampled 9 times each, and analyzed by real-time PCR for 6 EHEC O-types, Shiga-like-toxin (stx1 and stx2) and intimin (eae) genes. With the exception of O111, 5 O-types were recorded regularly and at high frequencies (O26: 33.3 %; O157: 33.3 %; O104: 66.6 %; O103: 72.2 %; O145: 94.4 %). Genes for Shiga-like-toxins and intimin we ...