نتایج جستجو برای: c2x e coli
تعداد نتایج: 1122897 فیلتر نتایج به سال:
Background and purpose: Increasing resistance to Quinolones in Escherichia coli and Klebsiella pneumonia in Sari, has caused many problems in treatment. Mutation in gyrA gene lead to changes in amino acids and resistance against Fluoroquinolones in E. coli and K. pneumonia. This study aimed at identifying remarkable mutations in E. coli and K. pneumonia isolates using PCR-SSCP analysis. Materi...
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...
چکیده زمینه و هدف: بیماری های اسهالی در همه گروه های سنی و در تمام مناطق جغرافیایی جهان اتفاق می افتند. اشریشیا کلی e. coli) o157: h7) یکی از مهمترین عوامل باکتریایی ایجاد کننده این بیماری می باشد. هدف از این پژوهش بررسی فراوانی شیوع اسهال ناشی از این باکتری در بیماران مبتلا به اسهال حاد بود. روش بررسی: در این مطالعه 214 نمونه مدفوع مربوط به اسهال حاد از بیماران در بیمارستان ها و آزمایشگاه های ...
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 ...
Background & Objectives: Urinary tract infection is a common disease, especially among women. Beta-lactam group of antibiotics are the commonly prescribed antibiotics for this disorder. The emergence of antibiotic resistance among gramnegative bacilli limited applicability and usefulness of the antibiotics. In this study, we assessed the prevalence of extended spectrum beta-lactamases (ESBL) pr...
اشریشیاکلی وروتوکسیژن شامل سویه‌ها‌یی است که دارای ژن‌های1 stx و 2stx می‌باشند که هر کدام نقشی در بیماریزایی باکتری E. coli دارند. این سویه‌ها باعث بروز اسهال خونی، سندرم همولیتیک اورمیک و ترومبوسایتوپنی پورپورا می‌شود. از آنجایی که احتمال وجود باکتری E. coli و سویه‌های وروتوکسین زا در مواد غذایی گوناگون از جمله شیر و پنیر زیاد است و به لحاظ اهمیت زیاد این سویه‌ها در بهداشت انسان، در همین راست...
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