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Enteroinvasive E. coli (EIEC) Enterohemorrhagic E. coli (EHEC) Enteroaggregative E. coli (EAEC) Uropathogenic E. coli (UPEC) Verotoxin-producing E. coli; E. coli O157:H7 is an enterohemorrhagic strain also 2006 North American E. coli outbreak; E. coli O104:H4, also 2011 E. coli O104:H4 outbreak; Escherichia coli O121; Escherichia coli O104:H21
Different strains of E. coli are often host-specific, making it possible to determine the source of fecal contamination in environmental samples. For example, knowing which E. coli strains are present in a water sample allows researchers to make assumptions about whether the contamination originated from a human, another mammal, or a bird.
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Most E. coli strains are harmless, but pathogenic varieties cause serious food poisoning, septic shock, meningitis, or urinary tract infections in humans. [1] [2] Unlike normal flora E. coli , the pathogenic varieties produce toxins and other virulence factors that enable them to reside in parts of the body normally not inhabited by E. coli ...
Sep 14, 2021 · Each E. coli pathotype has its characteristic pathogenicity mechanisms and a specific profile of virulence factors encoded by specific gene clusters. Genes associated with pathogenicity may encode activities such as adhesion, invasion, attachment, iron acquisition, motility, and toxin activity, among others.
- Babak Pakbin, Babak Pakbin, Babak Pakbin, Wolfram M Brück, John W A Rossen
- 2021
Dec 31, 2022 · Imposing their metrics, strains currently classified as E. coli would be split into six species—E. coli, E. coli_E, Escherichia ruysiae, Escherichia marmotae, Escherichia sp001660175, and Escherichia sp005843885—with the majority consigned to E. coli (Parks et al. 2021).
- Marta Cobo-Simón, Rowan Hart, Howard Ochman
- Mol Biol Evol. 2023 Jan; 40(1): msac273.
- 10.1093/molbev/msac273
- 2023/01
Aug 21, 2020 · The genome of E. coli strains (excluding Shigella) varies from 4.2 to 6.0 Mbp, which corresponds to 3,900–5,800 genes, respectively 32, 33, 34. This variability is the result of frequent ...
Feb 28, 2020 · The characterization of a recently isolated bacteriophage, vB_Eco4M-7, which effectively infects many, though not all, Escherichia coli O157 strains, is presented. The genome of this phage ...
