background and objectives: the most common serotype of enterohaemorrhagic esherichia coli group or shiga-toxin-producing e. coli is o157:h7. domestic and wild ruminants are regarded as the main natural reservoirs. o157:h7 serotype is the major cause of gastrointestinal infections in developed countries. in this study was conducted to survey on the toxigenic e. coli o157: h7 strains in milk of i...

The aim of this study was to assess the prevalence of ESBL-producing E. coli in agricultural fields of Gorgan district, Golestan province. Soil samples were collected from 20 agricultural fields, half of them treated with chemical fertilizers and the rest with bovine manure. Two samples, from surface and a depth of 15cm, were taken. After enrichment and culture onto MacConkey agar, Pink colored...

Background and Aims: The rate of urinary tract infection caused by the extended-spectrum-β-lactamase- (ESBL) producing Escherichia coli (E. coli) is increasing worldwide. This study aimed to assess the frequency of blaCTX-M genes in the E. coli isolated from urinary tract infection (UTI) in outpatients. Methods: 240 E. coli bacteria were isolated from the outpatients’ urine samples in the Kerma...

Background: Kebab is one of the popular ready-to-eat foods in Indonesia and sold as a street food. The purpose of this study was to determine occurrence and antibiotic resistance of Escherichia coli in street-vended kebab in Dramaga, Bogor, Indonesia. Methods: Totally, 43 samples of kebab meat were collected from street food kebab vendors. Examinations on Total Plate Count (TPC), and total E. ...

Background: Escherichia coli (E. coli) remains one of the leading agents of urinary tract infection (UTIs), it has become resistant to many drugs. Current work aimed to evaluate some chemical substances as antibacterial agents and molecular study of virulence factors associated with UTIs. Methods: This work involved 133 urine specimens obtained from females’ patients suffering from UTIs, Met...

Background: This study aimed to describe the association between age groups and antimicrobial susceptibility patterns, also integron presence in Escherichia coli and Klebsiella pneumoniae  isolates from Tabriz, Iran. Materials and methods: 140 isolates of E. coli and 150 isolates of K. pneumoniae, both comprising the same number of children and adult isolates were examined for susceptibil...

Background: Enterohemorrhagic Escherichia coli (EHEC) O157:H7 is an infectious zoonotic pathogen causing human infections. These infections, in some cases, can lead to hemolytic uremic syndrome and its life-threatening complications and even death worldwide. The first intimate bacterial adhesion, intimin (I), with its own receptor translocated intimin receptor (Tir) and E. coli secreted protein...

In this study, it has been our purpose to isolate and serotype enteropathogenic E. coli, salmonella and shigella and determine their resistance to antibiotics. 502 swab specimens were collected during mid-July to midNovember. 1986. from two children's hospitals in Tenran. From 502 cultured specimens. 108 specimens were positive for salmonella. shigella and enteropathogenic E. coli. corresp...

introduction:  the aim of the present study was to investigate the presence and the frequency of eaec as etiologic agent of diarrhea in shiraz. enteroaggregative e. coli (eaec) is increasingly recognized as a cause of often persistent diarrhoea in children and adults in both developing and developed countries, and have been identified as the cause of several outbreaks worldwide.   materials and...