OBJECTIVES The presence of ESBL/AmpC-producing E. coli in cattle has been reported previously, however information on veal calves is limited. This study describes the prevalence and molecular characteristics of E. coli with non-wild type susceptibility to cefotaxime in veal calves at slaughter. METHODS Faecal samples from 100 herds, 10 individual animals per herd, were screened for E. coli wi...

Resistance to extended-spectrum cephalosporins is often associated with plasmid encoded extended spectrum beta-lactamases (ESBL). In order to evaluate the prevalence and diversity of ESBLs in enterobacteria in our city, a 1-month-period survey was carried out from April to May 2000. Extended-spectrum-cephalosporin-resistant strains, isolated from inpatient clinical specimens other than stools, ...

Background and Objective: Burn wound infections caused by Pseudomonas aeruginosa exhibiting β-lactam antibiotic resistance are one of the greatest challenges of antimicrobial treatment. In this context, P. aeruginosa strains harboring resistance mechanisms, such as production of extended-spectrum beta-lactamases have the highest clinical impact no the management of burn wound infections. The ai...

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...

Background: The prevalence of ESBLs-producing Escherichia coli has recently increased worldwide due to the expression ESBL genes which had led high rate multidrug resistance antibiotics. Aim: To determine antimicrobial susceptibility patterns E. isolates and evaluating carriage these at phenotypic genotypic levels. Methods: One hundred two clinical were recovered from UTI suspects analyzed for ...

A subset of the study population from a cross-sectional study of carriership of ESBL/pAmpC-producing E. coli (ESBL-E) in the general population was followed up by five successive samples over an approximate half year period, leading to six samples in 333 persons. Fecal samples were cultured and analyzed for the presence of E. coli types as characterized by MLST, and ESBL/pAmpC genes were analys...

BACKGROUND Extended-spectrum β-lactamases (ESBLs) is one of the most important mechanisms of resistance to β-lactams especially among Enterobacteriaceae family including Klebsiella spp. Different types of extended-spectrum β-lactamases including CTX-M-type and PER enzymes are identified among gram negative bacteria. OBJECTIVES The current study aimed to determine the prevalence of CTX-M-type ...