TABLE 1.

Distribution of carbapenem MICs for the 57 KPC-possessing and the 106 non-KPC-possessing clinical isolates in this study

Characteristic of strain group (by PCR-confirmed β-lactamase content) and antimicrobialNo. of isolates with a MIC (μg/ml) of:
<11248163264128>128
KPC and KPC/ESBL positive (n = 57)
    Imipenem91014186
    Meropenem281113158
    Ertapenem11013171132
VIM and VIM/ESBL positive (n = 53)
    Imipenem38141972
    Meropenem241218134
    Ertapenem2111015123
AmpC and AmpC/ESBL positive (n = 40)
    Imipenem2211232
    Meropenem2983
    Ertapenem24531133
ESBL positive (n = 13)
    Imipenem94
    Meropenem121
    Ertapenem103