نتایج جستجو برای: shiga toxin producing escherichia coli
تعداد نتایج: 319641 فیلتر نتایج به سال:
Culture on cefixime, tellurite, and sorbitol-MacConkey agar after HCl treatment facilitated the growth of 410 (94%) of 436 eae-positive Shiga toxin-producing Escherichia coli (STEC) strains and 17 (16%) of 107 eae-negative STEC strains. This selectivity was closely related to acid resistance in E. coli and tellurite resistance in eae-positive STEC strains.
We designed a multiplex PCR for the detection of all categories of diarrheagenic Escherichia coli. This method proved to be specific and rapid in detecting virulence genes from Shiga toxin-producing (stx(1), stx(2), and eae), enteropathogenic (eae and bfp), enterotoxigenic (st II and lt), enteroinvasive (vir F and ipa H), entero-aggregative (aaf II), and diffuse adherent (daa E) Escherichia col...
Shiga toxin-producing Escherichia coli (E. coli) strains (STEC) are most important food borne pathogenic bacteria. STEC are agents of serious illnesses such as food poisoning, dysentery, hemorrhagic colitis and hemolytic–uremic syndrome (HUS). Most of the cases in hemorrhagic colitis, HUS and sudden death in all ages are related to 0157:H7 serotypes that are considered as the most important ser...
BACKGROUND We describe an outbreak of gastroenteritis and the hemolytic-uremic syndrome caused by Shiga-toxin-producing Escherichia coli in Germany in May, June, and July, 2011. The consumption of sprouts was identified as the most likely vehicle of infection. METHODS We analyzed data from reports in Germany of Shiga-toxin-producing E. coli gastroenteritis and the hemolytic-uremic syndrome an...
Escherichia coli is usually a commensal bacterium of humans and animals. Pathogenic variants cause intestinal and extra intestinal infections, including gastroenteritis, urinary tract infection, meningitis, peritonitis and septicemia. Nowadays, the worldwide concern on the spread of this bacterium is mainly connected to the resistance phenomenon. This research was conducted in order to reveal a...
A multiplex PCR assay for the identification of human diarrheagenic Escherichia coli was developed. The targets selected for each category were eae for enteropathogenic E. coli, stx for Shiga toxin-producing E. coli, elt and est for enterotoxigenic E. coli, ipaH for enteroinvasive E. coli, and aggR for enteroaggregative E. coli. This assay allowed the categorization of a diarrheagenic E. coli s...
Escherichia coli is a normal inhabitant of the gastrointestinal tract of all warm-blooded animals, but variants of this species is also among the important etiological agents of enteritis and several extraintestinal diseases. The E. coli strains that cause diarrhoeal illness are categorised into pathogenicity groups based on virulence properties, mechanisms of pathogenicity, clinical symptoms a...
Introduction The outbreak of Shiga Toxin producing Escherichia coli O104:H4 linked to bean sprouts led to over 3800 confirmed cases of illness that included more than 823 cases of Haemolytic Uremic Syndrome (HUS) and 44 deaths (Frank et al., 2011). Although it appeared that the O104:H4 serotype came from nowhere the pathogen had actually been isolated in Germany 10 years ago. The outbreak in Ge...
This study evaluated the microbiological quality and prevalence of Escherichia coli diarrheagenic E. pathotypes (DEP) among fresh-squeezed orange juice from street vendors their hygienic practices. Sixty stalls in Mexico City were visited, 60 samples purchased. Most (65%) had poor Twelve (20%) prepared at time purchase, while other sold already-squeezed juice. All analyzed positive for aerobic ...
Shiga toxins (Stx) are the main virulence factors associated with a form of Escherichia coli known as Shiga toxin-producing E. coli (STEC). They are encoded in temperate lambdoid phages located on the chromosome of STEC. STEC strains can carry more than one prophage. Consequently, toxin and phage production might be influenced by the presence of more than one Stx prophage on the bacterial chrom...
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