Resumo

NAVARRO-NAVARRO, Moisés; ROBLES-ZEPEDA, Ramón Enrique; GARIBAY-ESCOBAR, Adriana  e  RUIZ-BUSTOS, Eduardo. Hospital and community-acquired β-lactamases-producing Escherichia coli and Klebsiella pneumoniae at hospitals in Hermosillo, Sonora. Salud pública Méx [online]. 2011, vol.53, n.4, pp.341-344. ISSN 0036-3634.

OBJECTIVE: To determine the prevalence of extended-spectrum β-lactamases (ESBL)-producing Esherichia coli and Klebsiella pneumoniae in hospitals of Hermosillo, Sonora, Mexico. MATERIAL AND 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.

Palavras-chave : Escherichia coli; Klebsiella pneumoniae; betalactamase; Mexico.

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