Clonal dissemination of Yersinia enterocolitica strains with various susceptibilities to nalidixic acid

Javier Sánchez-Céspedes, Margarita M. Navia, Rocío Martínez, Beatriz Orden, Rosario Millán, Joaquín Ruiz, Jordi Vila

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Abstract

Ten epidemiologically related Yersinia enterocolitica clinical isolates were studied. Six isolates were nalidixic acid resistant (MIC > 512 μg/ml), with mutations in the quinolone resistance-determining region (QRDR) of the gyrA gene, suggesting clonal dissemination of a nalidixic acid-susceptible Y. enterocolitica strain which has acquired different mutations generating resistance to nalidixic acid.

Original languageEnglish
Pages (from-to)1769-1771
Number of pages3
JournalJournal of Clinical Microbiology
Volume41
Issue number4
DOIs
StatePublished - 1 Apr 2003

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