BioMed Research International / 2015 / Article / Tab 2

Research Article

Characterization of Multidrug Resistant Extended-Spectrum Beta-Lactamase-Producing Escherichia coli among Uropathogens of Pediatrics in North of Iran

Table 2

Percentage of antimicrobial susceptibility in ESBL-producing E. coli strains based on MIC results.

Antimicrobial agents (%) (%) (%) CLSI breakpoints
(g/mL)

Cephalosporins
 Cefepime671320≤8≥32
 Cefixime9901≤0.25≥1
 Ceftriaxone284230≤8≥64
 Ceftazidime192655≤16≥32
 Ceftizoxime462727≤8≥64
 Cefotaxime134047≤8≥64
Carbapenems
 Imipenem231166≤4≥16
 Meropenem181567≤4≥16
Aminoglycosides
 Amikacin34858≤16≥64
 Gentamicin371251≤4≥16
Others
 Ciprofloxacin76024≤1≥4
 Colistin82018≤2≥4
  Trimethoprim/sulfamethoxazole65728≤2/38≥4/76
 Piperacillin/tazobactam203842≤16/4≥128/4

: resistance, : intermediate, : sensitive, CLSI: Clinical Laboratory Standards Institute, and ESBL: extended-spectrum beta-lactamase.

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