conclusions the analysis recommended that ta genes are prevalent in clinical isolates of e. coli strains. the analysis revealed that hipba ta system is associated with biofilm formation. results the results of the analysis revealed that 107 e. coli isolates were potent for biofilm formation by cra. the findings by microtiter plates showed that 102 e. coli isolates were biofilm producers. the re...

Enterotoxigenic Escherichia coli (ETEC) produces different virulence factors allowing the bacterium to colonize and develop watery diarrhea. Proteomics studies have also introduced new protein belonging to the secretion pathways, antigen 43 (Ag43), which plays important role in E. coli pathogenesis. The objective of this study was to investigate O-types and virulence factors o...

In this study, to know about the phylogeny of Escherichia coli isolated from broilers with collibacillosis in Tabriz, 70 E. coli isolates recovered from broilers with collibacillosis were characterized for phylogenetic group (A, B1, B2, D) by multiplex PCR. Of the all 70 samples, 35 (50%) isolates were classified as type A, 32 (45%) as type D, 2 (2.8%) as type B1 and 1 (2.8%) as type B2. This s...

Introduction: Urinary tract infection is a common nosocomial infection that has recently become difficult to treat because of the increased emergence of multi-drug resistant strains. This study aims to determine the minimum inhibitory concentration, and molecular pattern of resistance to fosfomycin in Escherichia coli isolates originated from patients hospitalized with urinary tract infection i...

background: ampc and esbls as mediated-plasmid extended spectrum β-lactabases are the main factors of resistance to extended-spectrum cephalosporins in enterobacteriacea especially e. coli and will follow treatment failure, high costs of treatment in human and economic losses in the poultry industry. objectives: the purpose of this study was to screen and study the faecal e. coli isolates produ...

background: the emergence and propagation of different phylogenetic groups of antimicrobial-resistant e. coli have become a worldwide health concern in human and veterinary medicine. therefore, the evaluation of the phylogenetic distribution of antibiotic-resistant e. coli is important for therapeutic and economic purposes. the aims of this study were to determine phylogenetic groups and patter...

conclusions the β-lactamase disk test is appropriately sensitive to detect esbls in mdr isolates of e. coli. background most urinary tract infections (utis) are caused by escherichia coli (e. coli) species. due to infections outbreaks of e. coli strains with multiple mechanisms of resistance to β-lactam antibiotics, the sensitivity of confirmatory tests to detect the extended spectrum β-lactama...

background: there is a growing concern on the impact of the presence of extended-spectrum β-lactamase (esbl) producing escherichia coli isolated from animals on public health. objectives: the aim of this study was to investigate the presence of three classes of esbl genes in e. coli isolates from sheep and broilers at a slaughter in urmia region, iran. methods: a total of 111 e. coli isolates w...

aim : the aims of this study were to determine the phylogenetic groups and investigate phenotypic and genotypic of esbl and mbl-producing e . coli isolates from patients with diar­rhea in kerman, southeast of iran. background : escherichia coli is detected as a significant cause of sporadic and outbreaks of diarrhea. the emergence of extended-spectrum ?-lactamases (esbls) and metallo-?-lactamas...