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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