TABLE 1.

Summary of MICs for drugs

Antibiotic	MIC (mg/liter)a
Ampicillin	≥32 (R)
Ampicillin/sulbactam	8 (S)
Amoxicillin-clavulanic acid	4 (S)
Piperacillin	≥256 (R)
Piperacillin-tazobactam	≤4 (S)
Cefoxitin	≤4 (S)
Cefixime	≤0.25 (S)
Cefotaxime	≤1 (S)
Ceftazidime	≤1 (S)
Imipenem	2 (S)
Meropenem	≤0.25 (S)
Ciprofloxacin	≥4 (R)
Levofloxacin	≥8 (R)
Tobramicin	≥16 (R)
Gentamicin	≥16 (R)
Netilmicin	≥32 (R)
Cotrimoxazole	≥320 (R)
Tetracycline	4 (S)
Nitrofurantoin	≤16 (S)

^aS, susceptible; R, resistant.