| outbreak of extended-spectrum β-lactamase-producing klebsiella oxytoca infections associated with contaminated handwashing sinks(1). | klebsiella oxytoca is primarily a health care-associated pathogen acquired from environmental sources. during october 2006-march 2011, a total of 66 patients in a hospital in toronto, ontario, canada, acquired class a extended-spectrum β-lactamase-producing k. oxytoca with 1 of 2 related pulsed-field gel electrophoresis patterns. new cases continued to occur despite reinforcement of infection control practices, prevalence screening, and contact precautions for colonized/infected patients. cultur ... | 2012 | 22841005 |