Table 3.

Antibiotic susceptibility pattern of E. coli species isolates.

Antimicrobial Agentes	Disk concentration	Diameter inhibition		%R	%I	%S
		Resistant	Susceptible
Amikacin	30	≤14	≥17	6.5	-	93.5
Amp/Sulbactam	10	≤11	≥15	35.5	20.5	31.8
Ampicilin	10	≤13	≥17	67.8	-	32.2
Aztreonam	30	≤15	≥22	38.7	6.5	54.8
Cefazolin	30	≤14	≥18	42	3.2	54.8
Cefepime	30	≤14	≥18	41.9	-	58.1
Cefotaxime	30	≤14	≥23	38.7	-	65.3
Cefoxitin	30	≤14	≥18	6.5	3.2	90.3
Ceftazidime	30	≤14	≥18	38.7	-	61.3
Ceftriaxone	30	≤13	≥21	35.5	3.2	61.3
Ciprofloxacin	5	≤15	≥21	41.9	-	58.1
Doripenem	8	≤13	≥21	3.2	-	96.8
Ertapenem	4	≤15	≥21	3.2	-	96.8
Gentamicin	10	≤12	≥15	22.6	-	77.4
Meropenem	10	≤13	≥16	6.5	-	93.5
Nitrofurantoin	300	≤14	≥17	6.5	-	93.5
Pip/tazo	100/10	≤17	≥21	22.5	6.5	71.3
Piperacilin	100	≤17	≥21	45.2	-	54.8
Tobramycin	10	≤12	≥15	19.3	9.7	71
Trimet/sulfa	0.25/23.7	≤10	≥16	50	-	50