Multiclonal outbreak of Klebsiella pneumoniae producing extended-spectrum beta-lactamase CTX-M-2 and novel variant CTX-M-59 in a neonatal intensive care unit in Brazil

Antimicrob Agents Chemother. 2008 May;52(5):1790-3. doi: 10.1128/AAC.01440-07. Epub 2008 Mar 17.

Abstract

An outbreak of cephalosporin-resistant Klebsiella pneumoniae occurred in a neonatal intensive care unit in São Paulo, Brazil. Of the 10 pulsotypes identified during the outbreak and follow-up periods, nine produced CTX-M-2 or its new variant CTX-M-59 and one produced SHV-5. bla(CTX-M-2/59) genes were located on closely related plasmids that were transferable.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism*
  • Brazil / epidemiology
  • Cephalosporins / pharmacology
  • Disease Outbreaks
  • Drug Resistance, Bacterial
  • Electrophoresis, Gel, Pulsed-Field
  • Humans
  • Infant, Newborn
  • Intensive Care Units, Neonatal*
  • Klebsiella Infections / epidemiology
  • Klebsiella Infections / microbiology
  • Klebsiella pneumoniae / enzymology*
  • Klebsiella pneumoniae / genetics
  • Klebsiella pneumoniae / isolation & purification
  • Microbial Sensitivity Tests
  • Molecular Sequence Data
  • Mutation
  • Polymerase Chain Reaction
  • beta-Lactamases / genetics
  • beta-Lactamases / metabolism*

Substances

  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Cephalosporins
  • beta-lactamase CTX-2
  • beta-Lactamases

Associated data

  • GENBANK/DQ322460
  • GENBANK/DQ408762