TABLE 3.

Susceptibility test results for Enterobacteriaceae

DrugNo. of isolatesBreakpoint standardNo. of isolates in interpretive category% of results with:
SIREACAmEMEVME
Quinolones
    Ciprofloxacin382NCCLS320144899.299.50.50.00.0
    Gatifloxacin382NCCLS328134197.999.01.00.00.0
    Levofloxacin382NCCLS332123899.299.70.30.00.0
    Lomefloxacin382NCCLS305185999.299.20.80.00.0
    Moxifloxacin370Pharma307164796.299.20.80.00.0
    Norfloxacin381NCCLS325164098.499.70.30.00.0
    Ofloxacin382NCCLS321134899.299.70.30.00.0
    Nalidixic acid379NCCLS27710296.0100.00.00.00.0
Aminoglycosides
    Amikacin382NCCLS3726494.099.50.50.00.0
    Gentamicin382NCCLS328104497.4100.00.00.00.0
    Kanamycin363NCCLS29766097.0100.00.00.00.0
    Netilmicin381NCCLS34582895.399.01.00.00.0
    Tobramycin382NCCLS323184196.399.20.80.00.0
β-Lactam penicillins
    Ampicillin382NCCLS741129791.293.24.26.81.7
    Piperacillin383NCCLS2062914886.292.76.51.50.0
    Ticarcillin383NCCLS1392122391.996.32.91.40.4
β-Lactam/β-lactamase inhibitors
    Amoxicillin/clavulanate382NCCLS1862417295.296.62.41.11.2
    Ampicillin/sulbactam382NCCLS1465817890.691.66.32.12.8
    Piperacillin/tazobactam381NCCLS286128390.496.32.90.32.4
Carbapenems
    Imipenem379NCCLS36113587.698.71.30.00.0
    Meropenem377NCCLS3731396.099.50.50.00.0
Cephems
    Cefazolin379NCCLS1671220093.394.72.91.23.5
    Cefdinir382NCCLS2081515989.793.23.93.42.5
    Cefepime381NCCLS32525492.798.70.30.63.7
    Cefmetazole324NCCLS222129092.295.72.21.44.4
    Cefoperazone379NCCLS257611691.596.62.11.60.9
    Cefotaxime380NCCLS295117496.497.61.80.02.7
    Cefotetan381NCCLS29168493.196.61.80.07.1
    Cefoxitin382NCCLS2192413992.796.12.41.42.2
    Cefpodoxime378NCCLS2412711089.394.44.20.04.5
    Ceftazidime382NCCLS29857995.898.71.00.01.3
    Ceftibuten371NCCLS28238689.497.31.90.42.3
    Ceftizoxime377NCCLS29148297.298.70.50.71.2
    Ceftriaxone382NCCLS290128094.996.12.60.35.0
    Cefuroxime381NCCLS2132214694.297.41.01.91.4
    Cephalothin381NCCLS1054423295.497.90.81.01.7
Monobactams
    Aztreonam382NCCLS29967797.397.91.00.33.9
Folate antagonists
    Trimethoprim382NCCLS2909291.999.00.00.04.3
    Trimethoprim/sulfamethoxazole382NCCLS2998397.197.60.01.74.8
Others
    Tetracycline379NCCLS2172613694.597.91.60.50.7
    Chloramphenicol382NCCLS297176894.596.62.61.00.0
    Nitrofurantoin377NCCLS197978396.698.11.60.50.0
  • a Pharm, pharmaceutical company.