الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 98 |  |  |
| | | from | 98 | | |
Abstract
It was reported that there’s an increase in the spread of multidrug resistant E coli in animals and human. This resistance can be attributed to the use of antibiotics in animal food as preservatives or for therapeutic purposes. The resistance can be transferred to other bacteria resulting in more dissemination of resistant strains, so it represents a major public health threat. The current research aimed to detect some of the important virulence factors which play an important role in the pathogenesis of E coli, also detection of multi drug resistance among the isolated Eicoli and correlation of the multidrug resistance in Ecoli with some of the virulence factors. So, understanding the causes of resistance and its predisposing factors enable researchers in the future to reach the methods that can enable them to make limitation to this resistance. Consequently, these methods will help in treatment and alsoavoid economic losses A total of 40 samples, 35 samples from diarrheic calves and 5 urine samples from human were collected, then bacteriological examination was performed for isolation and identification of E coli isolates. Biochemical examination of the samples resulting in the following: Out of 35 calf samples, 30 were lactose fermenters and both 5 human samples were lactose fermenters. Out of 30 lactose fermenter calf samples, 24 were Ecoli and out of 5 human samples 4 human samples were Ecoli. Antimicrobial sensitivity testing was performed for 12 Ecoli calf isolates and 4 E coli human isolates by disc diffusion test using