| molecular characterization and antimicrobial susceptibility of extended-spectrum {beta}-lactamase-producing enterobacteriaceae isolates at a tertiary-care centre in monterrey, mexico. | our objective was to analyse phenotypic and genetic data of extended-spectrum β-lactamase (esbl)-producing klebsiella pneumoniae, enterobacter cloacae, escherichia coli and serratia marcescens that cause infections in our hospital. over a 3 year period, 342 randomly selected clinical enterobacteriaceae isolates were tested for esbl production and evaluated for the presence of the β-lactamase genes bla(shv), bla(tem,) bla(ctx-m) and bla(tla-1). the antibiotic susceptibilities of these isolates we ... | 2010 | 20930052 |