TABLE 1

Antimicrobial susceptibility of the three clinical E. coli isolates producing the blaNDM-5 gene and their transconjugants

Antibiotic(s)MIC (μg/ml) for:
E. coli J53E. coli NDM-5E. coli J53–NDM-5 transconjugants
Ampicillin2>256>256
Amoxicillin-clavulanate2>256>256
Piperacillin-tazobactam1>256>256
Cefoxitin4>256>256
Cefotaxime2>256>256
Cefuroxime4>256>256
Ceftazidime0.064>256>256
Aztreonam0.094>2560.094
Imipenem0.25>32>32
Gentamicin<1>512>512
Amikacin<4>512>512
Tobramycin<2>512>512
Ciprofloxacin0.032>320.032