Ciprofloxacin-resistant Salmonella Kentucky in Travelers
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.