TABLE 1.

Antimicrobial susceptibility of different strains and transformants

StrainaMIC (μg/ml)b
MEMIPMAMXTICTZPPIPCXMCAZCFP
TVICU14816>1,024>1,024≥128>1,024≥6416128
ATCC 179030.50.256416≤4161642
ATCC 17903(pYMAb3)0.50.256416≤4161642
ATCC 17903(pOXA-58-5)1632>1,024>1,024≥128>1,024≥6444
ATCC 17903(pOXA-58-6)816>1,024>1,024≤45121642
ATCC 17903(pOXA-58-7)0.50.5256256≤4321642
  • a ATCC 17903 is a reference strain of Acinetobacter genomic species 13TU; plasmid pYMAb3 is a shuttle vector; pOXA-58-5 was derived from pYMAb3 and contained IS1006-ΔISAba3-like-blaOXA-58; pOXA-58-6 contained ΔISAba3-like-blaOXA-58; pOXA-58-7 contained only blaOXA-58.

  • b MIC data for piperacillin-tazobactam (TZP) and cefuroxime (CXM) are from the Vitek II system; other MIC data are from the agar dilution method. MEM, meropenem; IMP, imipenem; AMX, amoxicillin; TIC, ticarcillin; PIP, piperacillin; CAZ, ceftazidime; CFP, cefepime.