title: [Hospital and community-acquired β-lactamases-producing Escherichia coli and Klebsiella pneumoniae at hospitals in Hermosillo, Sonora].
abstract: OBJECTIVE
  To determine the prevalence of extended-spectrum β-lactamases (ESBL)-producing Esherichia coli and Klebsiella pneumoniae in hospitals of Hermosillo, Sonora, Mexico.
  
  
  METHODS
  To detect ESBL-production, 1 412 bacterial isolates obtained over a one year period (2008-2009) were analyzed using the double-disk synergy test, with and without clavulanic acid.
  
  
  RESULTS
  Hospitalaryacquired ESBL-producing E.coli and K.pneumoniae (31.8% and 35.3%) were isolated with higher prevalence that community-acquired isolates (14.4% and 0.0%) (p<0.005).
  
  
  CONCLUSIONS
  Our study shows the presence of ESBL-producing bacteria in the three hospitals.
authors: Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México. moisesn@guayacan.uson.mx
authors: Moisés
authors: M
authors: Navarro-Navarro
authors: Ramón Enrique
authors: RE
authors: Robles-Zepeda
authors: Adriana
authors: A
authors: Garibay-Escobar
authors: Eduardo
authors: E
authors: Ruiz-Bustos
mesh_terms: D017714:Community-Acquired Infections / Q000382:microbiology; D003428:Cross Infection / Q000382:microbiology*; D004926:Escherichia coli / Q000201:enzymology* / Q000302:isolation & purification*; D004927:Escherichia coli Infections / Q000382:microbiology*; D006801:Humans; D007710:Klebsiella Infections / Q000382:microbiology*; D007711:Klebsiella pneumoniae / Q000201:enzymology* / Q000302:isolation & purification*; D008800:Mexico; D011446:Prospective Studies; D001618:beta-Lactamases / Q000096:biosynthesis*
chemical_list: D001618:beta-Lactamases