e-test antibiotic susceptibility of e.coli strains isolated from hospital acquired infections of imam khomeini hospital, ilam, iran

introduction: escherichia coli (e.coli) as a main cause of both nosocomial and community-acquired infections in humans have a relative potential to develop resistance. nowadays, most infections caused by esbl-producing e.coli (esblec) had mostly been described as nosocomial acquired or nursing home related. in this study, we employed e-test assay to detect antibiotic resistance of e.coli strains and determine mic of antibiotics. materials and methods: thirty e.coli strains gathered from imam khomeini hospital of ilam, and cultured on tsb and bacterial suspension prepared by 0.5 µf concentration for e-test. mueller hinton agar and e-test strips of amikacin, cefepime, ceftazidime, ceftriaxone, gentamicin, meropenem, nitrofurantoin, piperacillin/tazobactam, tetracycline, ticarcillin/ clavulanic acid, tobramycin, trimethoprim were used results: resistance to ceftriaxone, tobramycin, gentamicin, ticarcillin/ clavulanic, amikacin were 19.8%, 26.4%, 23.3%, 62.7%, 70.3%, respectively. conclusion: the results indicated, e.coli strains in this study were high sensitivity to meropenem ,nitrofuratoin, ciprofloxacin , ceftazidime, cefepime.