Investigation of Escherichia coli FimH gene occurrence isolated from clinical and environmental samples

Abstract

The aim of current study was Investigation of FimH gene occurrence a virulence factor in Escherichia coli. sixty urine samples of women with urinary tract infection symptoms. In addition, samples from different environmental places involving poultry, knacker shops, drainage water, fresh water and sewage water were collected during 22ed November 2017 to 28ed February 2018. Twenty-one clinical and twenty-three environmental isolates of Escherichia coli. The data were analyzed by using the statistical package social system (SPSS).The biofilm formation were 14(66.6%) strong, 7(33.30%) moderate and weak biofilm producers not exit in clinical isolates, while 13(41%) strong, 8(34.70%) moderate and 2(8.60%) for weak biofilm formation in environmental isolates. Moreover, PCR assay of FimH was applied. So, 20 isolates (95.23%) were positive results for clinical isolates and 17 isolates (73.9%) positive results for environmental. Uropathogenic E. coli had the higher occurrence rate for fimbriae gene (FimH) compared with environmental isolates, Stronger biofilm formation by clinical E. coli isolates than by environmental isolates. There is a significant correlation between biofilm formation and probability of FimH occurrence in both clinical and environmental isolates.