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Volume 19, Number 2—February 2013
Dispatch

Macrolide- and Rifampin-Resistant Rhodococcus equi on a Horse Breeding Farm, Kentucky, USA

Alexandra J. Burton, Steeve GiguèreComments to Author , 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)

Main Article

Table 1

Macrolide- and rifampin-resistant Rhodococcus equi on horse breeding farm, Kentucky, USA*

Year No. foals born No. (%) foals with lesions treated No. foals tested No. foals with positive R. equi culture No. (%) foals with macrolide- and rifampin-resistant R. equi
2001 95 30 (32) 30 30 0
2002 117 53 (45) 0 NA NA
2003 148 58 (32) 2 ? ?
2004 181 88 (49) 28 19 0
2005 168 70 (42) 30 ? ?
2006 170 42 (41) 5 2 0
2007 181 93 (51) 4 ? ?
2008 171 52 (30) 21 16 4 (25)†
2009 162 50 (31) 30 22 5 (23)†
2010 138 45 (33) 28 22 9 (41)†
2011 132 24 (18) 27 25 9 (36)†

*NA, not applicable; ?, data missing from farm records.
†Includes pretreatment and posttreatment isolates.

Main Article

1Current affiliation: Kalon Biotherapeutics LLC, College Station, Texas, USA.

Page created: January 22, 2013
Page updated: January 22, 2013
Page reviewed: January 22, 2013
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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