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Table 1 Antibiotic susceptibility results showing MIC ((mg/ml) of the isolated Enterobacter species

From: Enterobacter nimipressuralis as a cause of pseudobacteremia

Antimicrobial agent

Clinical isolate of Case 1

Clinical isolate of Case 2

Cotton isolate

CLSI Breakpoint ((g/ml)

ampicillin

16

16

16

8-32

Amoxacillin-clavulanic acid

< 4/< 4

< 4/< 4

< 4/< 4

8/4-32/16

Piperacillin-tazobactam

< 4/< 4

< 4/< 4

< 4/< 4

16/4-128/4

cefotaxime

< 1

< 1

< 1

8-64

ceftazidime

< 1

< 1

< 1

8-32

cefoxitin

8

8

8

8-32

cephalothin

> 64

> 64

> 64

8-32

imipenem

< 0.5

< 0.5

< 0.5

4-16

gentamicin

< 1

< 1

< 1

4-8

amikacin

< 2

< 2

< 2

16-32

netilmicin

< 1

< 1

< 1

12-32

trimethoprim-sulfamethoxazole

≤ 1/19

≤ 1/19

≤ 1/19

2/38-4/76

ciprofloxacin

< 0.25

< 0.25

< 0.25

1-4

ofloxacin

< 0.25

< 0.25

< 0.25

2-8

nitrofurantoin

16

32

16

32-128