TABLE 1.

Summary of MICs for drugs

AntibioticMIC (mg/liter)a
Ampicillin≥32 (R)
Ampicillin/sulbactam8 (S)
Amoxicillin-clavulanic acid4 (S)
Piperacillin≥256 (R)
Piperacillin-tazobactam≤4 (S)
Cefoxitin≤4 (S)
Cefixime≤0.25 (S)
Cefotaxime≤1 (S)
Ceftazidime≤1 (S)
Imipenem2 (S)
Meropenem≤0.25 (S)
Ciprofloxacin≥4 (R)
Levofloxacin≥8 (R)
Tobramicin≥16 (R)
Gentamicin≥16 (R)
Netilmicin≥32 (R)
Cotrimoxazole≥320 (R)
Tetracycline4 (S)
Nitrofurantoin≤16 (S)
  • a S, susceptible; R, resistant.