Epidemiological Investigation of Bloodstream Infections by Extended Spectrum Cephalosporin-ResistantEscherichia coliin a Taiwanese Teaching Hospital

Abstract
In an epidemiologic and case-control study including 30 case patients over a 3.5-year period in a Taiwanese university hospital, only β-lactamase inhibitor use and extended-spectrum cephalosporin use were identified as independent risk factors for nosocomial CMY-2-producingEscherichia colibloodstream infection, and CMY-2 producers were found more prevalent than extended-spectrum β-lactamase-producing isolates.

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