Introduction: This study is aimed to compare phenotypic test methods and determine antibiotic susceptibility pattern of AmpC beta-lactamase producing uropathogenic Escherichia coli and Klebsiella pneumoniae in clinical isolates. Method: E. coli and K. pneumoniae were identified by standard microbiological procedures. Screening of AmpC beta-lactamase production was done by using cefoxitin disc (...

Although Escherichia coli typically colonizes the intestinal tract and vagina of giant pandas, it has caused enteric and systemic disease in giant pandas and greatly impacts the health and survival of this endangered species. In order to understand the distribution and characteristics of E. coli from giant pandas, 67 fecal and 30 vaginal E. coli isolates from 21 giant pandas were characterized ...

The aim of this study was to identify virulent Shiga toxin-producing Escherichia coli (STEC) strains isolated from faecal samples of 100 clinically healthy calves. In the present study, a total of 100 Escherichia coli (E. coli) isolates from clinically healthy calves belonging to 6 different farms located in Khorasan Razavi province, Iran, were examined for presence of virulence genes character...

We compared the values of the minimum inhibitory concentration (MIC) and mutant prevention concentration (MPC) values of three antimicrobial agents for 72 bovine isolates of Pasteurella multocida, 80 swine isolates of P. multocida, 80 bovine isolates of Escherichia coli, 80 swine isolates of E. coli, and 80 isolates of Staphylococcus aureus from bovine mastitis. The ratio of MIC90 /MPC90 which ...

Seventy poultry farms’ drinking water was tested for Escherichia coli contamination in Qom province inIran. The cases of colibacillosis from positive farms were also collected and tested. The isolates wereexamined for serotype, detection of virulence genes by multiplex PCR and antibiotic resistance. Thirtypoultry farm water samples were E. coli positive (18.57%), although 13 E. coli isolates we...

background :   ampc beta lactamases play a significant role in creating resistance to third generation cephalosporins worldwide. they mostly express on chromosome of enterobacteriaceae especially escherichia coli and cause consequential problem in clinical treatment and lead to failure in diagnosis and phenotypic test recommended by clinical and laboratory standards institute.   methods : total...

OBJECTIVE To investigate the virulence factors including hemolysin production, β-lactamase production, and biofilm formation. Antimicrobial resistance and plasmid content of 20 Escherichia coli isolates obtained from feces and Tigris water were screened. METHODS Ten clinical and ten environmental E. coli isolates were collected from children diarrhea and swim areas on Tigris River in Baghdad ...

Infectious diseases are responsible for thousands of worldwide early death .Many commercial antibiotics have been used to control human's infectious diseases all over the world. Calotropis procera Linn a wild growing plant of Asclepiadaecae family is known to possess multifarious medicinal properties. Total 80 non repetitive clinical E. coli strains recovered during 7 month, a...

Objective(s) Resistance to the new generation of cephalosporins which is mediated by Extended-Spectrum beta-lactamases (ESBLs) has been found among Escherichia coli isolates throughout the world. These resistance genes and their producers, the micro-organisms carrying beta-lactamases, are responsible for serious clinical and therapeutic problems among inpatients and it is necessary to pay more...