[Detection of plasmid-mediated AmpC beta-lactamase in clinical isolates of cefoxitin-resistant Escherichia coli and Klebsiella pneumoniae].

Extended spectrum beta-lactamases (ESBL) or AmpC beta-lactamases may be associated with false cephalosporin susceptibility results. Although there are well-established methods for screening and confirmation of class A (ESBL) and class B metallobeta-lactamases (MBL), there is no current guideline for the detection of AmpC beta-lactamases. The aim of this study was to evaluate the performances of three different phenotypic tests [boronic acid (BA) - klavulanic acid (CA) inhibition test, AmpC disk test (TRISEDTA impregnanted), modified 3-dimensional test (M3DT)] for the detection of AmpC beta-lactamases.

[Microbiology of the external auditory canal in patients with asteatosis and itching].

Objectives: We examined the microbiology of the external auditory canal in patients with asteatosis and itching and evaluated the efficacy of topical 2% alcohol and boric acid solution in patients with normal flora.

Patients And Methods: Bacteriological and mycological cultures were obtained from 76 ears of 45 patients (36 females, 9 males; mean age 41.8 years; range 17 to 66 years) presenting with normal otoscopic findings and no history of ear diseases.