Outbreak of Nosocomial Sepsis and Pneumonia in a Newborn Intensive Care Unit by Multiresistant Extended-Spectrum β-Lactamase-Producing Klebsiella pneumoniae High Impact on Mortality

We describe a case-control study of a small outbreak of nosocomial sepsis and pneumonia with high mortality due to clonal dissemination of a multiresistant Klebsiella pneumoniae in the neonatal intensive care unit of a Mexican institution. Our study helped to change nosocomial infection control policy in this hospital.