Multiresistant extended-spectrum β-lactamase-producing Klebsiella pneumoniae causing an outbreak of nosocomial bloodstream infection

This article describes an outbreak of bloodstream infection due to clonal dissemination of multiresistant Klebsiella pneumoniae in a neonatal area, during August 1999, in Mexico City General Hospital. The intestinal tract was the likely reservoir, and intensification of Contact Precaution measures contained the outbreak.