TABLE 4.

Standard- and high-inoculum MICs for AmpC-harboring isolatesa

StrainMIC (μg/ml) of agent at inocula of 104 and 106 CFU/spotb:
CROFEPIMPERT
104106104106104106104106
MCV-4162560.130.50.25412
MCV-80G82560.13160.2580.516
MCV-638640.5640.520.250.5
MCV-298640.5640.1310.130.5
MCV-30W8641640.1310.060.25
  • a All isolates were nonsusceptible based on the cefoxitin disk diffusion screening test.

  • b Abbreviations: CRO, ceftriaxone; FEP, cefepime; IMP, imipenem; ERT, ertapenem.