Table 3.

Antibiotic resistance and MIC distributions of the seven plasmid mediated AmpC producing E. coli and K. pneumoniae

Antimicrobial agents	Resistance rate (%)	MIC distribution (μg/ml)
Aztreonam	85.7	>128
Amoxicillin/clavulanic acid	100	64
Ampicillin	85.7	>128
Ceftazidime	85.7	128
Cefotaxime	85.7	256
Cefoxitin	100	256
Ceftriaxone	71.42	>64
Cefuroxime	85.7	>128
Cefepime	42.9	64(1), 32 (1), 8(1)
Imipenem	0	0.5
Gentamicin	28.6	128
Amikacin	14.2	4
Ciprofloxacin	71.4	64