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Volume 12, Number 10—October 2006

Letter

Ciprofloxacin-resistant Salmonella Kentucky in Travelers

François-Xavier Weill*Comments to Author , Sophie Bertrand†, Françoise Guesnier*, Sylvie Baucheron‡, Patrick A.D. Grimont*, and Axel Cloeckaert‡
Author affiliations: *Institut Pasteur, Paris, France; †Scientific Institute of Public Health, Brussels, Belgium; ‡Institut National de la Recherche Agronomique, Nouzilly, France

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Figure

Dendrogram generated by BioNumerics version 4.1 (Applied Maths, Sint-Martens-Latem, Belgium) showing the results of cluster analysis on the basis of XbaI pulsed-field gel electrophoresis (PFGE) of Salmonella enterica serotype Kentucky isolates. Similarity analysis was performed by using the Dice coefficient, and clustering was performed by the unweighted pair-group method with arithmetic means with an optimization parameter of 0.5% and a 0.5% band position tolerance. The different PFGE profiles,

Figure. Dendrogram generated by BioNumerics version 4.1 (Applied Maths, Sint-Martens-Latem, Belgium) showing the results of cluster analysis on the basis of XbaI pulsed-field gel electrophoresis (PFGE) of Salmonella enterica serotype Kentucky isolates. Similarity analysis was performed by using the Dice coefficient, and clustering was performed by the unweighted pair-group method with arithmetic means with an optimization parameter of 0.5% and a 0.5% band position tolerance. The different PFGE profiles, the phenotypes of resistance to quinolones (R-type), and corresponding number of isolates are indicated. CIP, ciprofloxacin; NAL, nalidixic acid.

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