First Identification of Pseudomonas aeruginosa Isolates Producing a KPC-Type Carbapenem-Hydrolyzing β-Lactamase

Abstract
In Medellin, Colombia, three Pseudomonas aeruginosa isolates with high-level carbapenem resistance (MIC ≥ 256 μg/ml) and an isolate of Citrobacter freundii with reduced susceptibility to imipenem produced the plasmid-mediated class A carbapenemase KPC-2. This is the first report of a KPC-type β-lactamase identified outside of the family Enterobacteriaceae .

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