Macrolide- and Rifampin-Resistant Rhodococcus equi on a Horse Breeding Farm, Kentucky, USA
Alexandra J. Burton, Steeve Giguère , Tracy L. Sturgill, Londa J. Berghaus, Nathan M. Slovis, Jeremy L. Whitman, Court Levering, Kyle R. Kuskie, and Noah D. Cohen
Author affiliations: Author affiliations: University of Georgia, Athens, Georgia, USA (A.J. Burton, S. Giguère, T.L. Sturgill, L.J. Berghaus); Hagyard Equine Medical Institute, Lexington, Kentucky, USA (N.M. Slovis); Equine Medical Associates, Lexington (J.L. Whitman, C. Levering); Texas A & M University, College Station, Texas, USA (K.R. Kuskie, N.D. Cohen)
Figure 1. . Dendrogram and virtual gel repetitive sequence–based PCR fingerprint patterns of foal and air (barn and paddock)–derived isolates of Rhodococcus equi on horse breeding farm, Kentucky, USA, 2010. Macrolide and rifampin susceptibility (S) or resistance (R) are indicated. A indicates the main cluster of drug-resistant isolates (5 foal and 1 air).
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