this study was designed to compare the efficacy of a phytobiotic containing a mixture of essential oils of oreganum aetheroleum and an antibiotic containing ciprofloxacin as an active principle for the treatment of experimental escherichia coli (e. coli) infection in broiler chickens. two-hundred-day-old broiler chickens were divided into 5 equal groups. the 1st group was neither challenged nor...

background escherichia coli o157:h7 is an enteric pathogen which can be frequently found asymptomatically in ruminant mammals, but can cause diseases from mild diarrhea to hemolytic uremic syndrome in humans. methods we developed fluorescent amplification-based specific hybridization (flash–pcr) assay to detect the stx-encoding gene stx-1 of e. coli o157:h7. result pcr product of 336 bp was suc...

Antibiotic resistance occurs in the endogenous flora of exposed population in addition to pathogenic bacteria. This study was conducted to evaluate the distribution of antibiotic resistance genes among 63 isolates of Escherichia coli of Escherichia coli (E. coli) in diarrheic calves and poultry. According to the results, B1 and B2 were the most prevalent phylogroups of E. coli in calves and pou...

aim : the purpose of this study was to investigate the prevalence of enteropathogenic escherichia coli (epec) and shiga toxin producing e. coli (stec) strains in healthy broilers in iran.   background : stec and epec strains as diarrheagenic e. coli are among the most prevalent causative agents in acute diarrhea. domestic animals, mainly cattle and sheep, have been implicated as the principal r...

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...

Background and Objectives: E. coli and Klebsiella spp. are recognized as most prevalent bacteria causing urinary tract infection (UTI), the most common bacterial infection. Decreasing of antimicrobial susceptibility in urinary pathogens has made difficulty in treatment of UTI. The aim of this study was to determine antibiotic susceptibility of E. coli and Klebsiella spp. isolated from urine of ...