Surveillance of extended-spectrum β-lactamase-producing Escherichia coli and Klebsiella pneumoniae at a comprehensive cancer center in Japan, 2009-2013

Published:December 17, 2014DOI:


      • Nosocomial epidemiology of extended-spectrum β-lactamase-producing organisms is not clarified in Japan.
      • We focus on extended-spectrum β-lactamase-producing Escherichia coli and Klebsiella pneumoniae causing nosocomial outbreak.
      • We retrospectively compare the occurrence of these 2 extended-spectrum β-lactamase-producing organisms.
      • Our findings demonstrate an increase in the influx of Escherichia coli from the community.
      We examined the results of surveillance of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae, which are pathogens known to cause nosocomial outbreaks, at a comprehensive cancer center in Japan over a 5-year period. We found that the admission prevalence and the incidence of ESBL-producing E coli increased during the study period, in contrast with ESBL-producing K pneumoniae, in which the parameters remained low throughout the study period.

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