Plasmids from Shiga Toxin-Producing Escherichia coli Strains with Rare Enterohemolysin Gene ( ehxA ) Subtypes Reveal Pathogenicity Potential and Display a Novel Evolutionary Path
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منابع مشابه
Complete Genome Sequences of Four Enterohemolysin-Positive (ehxA) Enterocyte Effacement-Negative Shiga Toxin-Producing Escherichia coli Strains
Shiga toxin-producing Escherichia coli (STEC) strains are important foodborne pathogens associated with human disease. Most disease-associated STEC strains carry the locus of enterocyte effacement (LEE); however, regularly LEE-negative STEC strains are recovered from ill patients. Few reference sequences are available for these isolate types. Here, we report here the complete genome sequences f...
متن کاملShiga toxin subtypes associated with Shiga toxin-producing Escherichia coli strains isolated from red deer, roe deer, chamois, and ibex.
A total of 52 Shiga toxin-producing Escherichia coli (STEC) strains, isolated from fecal samples of six ibex, 12 chamois, 15 roe deer, and 19 red deer were further characterized by subtyping the stx genes, examining strains for the top nine serogroups and testing for the presence of eae and ehxA. Eleven of the 52 strains belonged to one of the top nine STEC O groups (O26, O45, O91, O103, O111, ...
متن کاملShiga toxin-producing Escherichia coli
Shiga toxin-producing Escherichia coli (STEC) cause hemorrhagic colitis (HC) and hemolytic uremic syndrome (HUS) in humans. Outbreaks are linked to bovine food sources. STEC O157:H7 has been responsible for the most severe outbreaks worldwide. However, non-O157 serotypes have emerged as important enteric pathogens in several countries. The main virulence factor of STEC is the production of Shig...
متن کاملShiga Toxin – producing Escherichia coli
1. Rautio M, Lonnroth M, Saxen H, Nikku R, Väisanen ML, Finegold SM, et al. Characteristics of an unusual anaerobic pigmented gram-negative rod isolated from normal and infl amed appendices. Clin Infect Dis. 1997;25(Suppl 2):S107–10. 2. Rautio M, Saxen H, Siitonen A, Nikku R, Jousimies-Somer H. Bacteriology of histopathologically defi ned appendicitis in children. Pediatr Infect Dis J. 2000;19:...
متن کاملSix Novel O Genotypes from Shiga Toxin-Producing Escherichia coli
Serotyping is one of the typing techniques used to classify strains within the same species. O-serogroup diversification shows a strong association with the genetic diversity of O-antigen biosynthesis genes. In a previous study, based on the O-antigen biosynthesis gene cluster (O-AGC) sequences of 184 known Escherichia coli O serogroups (from O1 to O187), we developed a comprehensive and practi...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2016
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.01839-16