E coli had high antibiotic resistance to ampicillin, cotrimoxazol, cephalosporins 2nd, 3rd generations, fluoroquinolones; and low resistance to ticarcillin-clavulanate, piperacillin-tazobactam, cefoperazone-sulbact, cefepime, amikacin, nitrofurantoin and carbapenems.