Antibiotic resistance pattern of E.coli isolated from urine culture in 660 Army clinical laboratory center in Tehran 2008

Urinary tract infections are the second most common type of body infection. E.coli is the most common cause of urinary tract of infection both sex.

For this descriptive study a total 4494 urine samples were examined during one year (2008-2009) in 660 Army Medical Laboratories. The urine cultures and Antibiogram profiles were performed by Kirby- Bauer method according to NCCLS standards. Data analyzed by SPSS software ver. 16.

A total of 4494 urine samples were analyzed that out of each 456 samples were showed the significance growth. The most frequently detected gram negative bacterium was E.coli in 257 cases (10.1%). The most antibiotic resistance rates of E.coli detected from urine culture were to Ampicillin, Co-trimoxazol and Gentamycine with 80%, 37%, 27.7% frequencies respectively. Furthermore, Norofoloxazin and Nitroforantoin had the highest sensitivity 89.6% and 89% respectively.

Present findings demonstrated the significance of resistance E.coli that was detected from urine culture to various group of antibiotic drugs caused by the irregular use of antibiotics.