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23. Wuersch K, Huessy D, Koch C, et al. Lawsonia intracellu- laris proliferative enteropathy in a filly. J Vet Med A Physiol Pathol Clin Med 2006;53:17–21.


24. Feary DJ, Gebhart CJ, Pusterla N. Lawsonia intracellu- laris proliferative enteropathy in a foal. Schweiz Arch Tier- heilkd 2007;149:129–133.


25. Pusterla N, Gebhart C. Lawsonia intracellularis infection and proliferative enteropathy in foals. Vet Microbiol 2013; 167:34–41.


26. Gebhart CJ, Kelley MR, Chander Y. Molecular typing of equine Lawsonia intracellularis isolates. J Equine Vet Sci 2012;32:S32–S33.


27. Pusterla N, Sanchez-Migallon Guzman D, Vannucci FA, et al. Transmission of Lawsonia intracellularis to weanling foals using feces from experimentally infected rabbits. Vet J 2013;195:241–243.


28. Boutrup TS, Boesen HT, Boye M, et al. Early pathogenesis in porcine proliferative enteropathy caused by Lawsonia in- tracellularis. J Comp Pathol 2010;143:101–109.


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30. Cooper DM, Gebhart CJ. Comparative aspects of prolifera- tive enteritis. J Am Vet Med Assoc 1998;212:1446–1451.


31. Wong DM, Alcott CJ, Sponseller BA, et al. Impaired intes- tinal absorption of glucose in 4 foals with Lawsonia intracel- lularis infection. J Vet Intern Med 2009;23:940–944.


32. Page AE, Loynachan AT, Bryant U, et al. Characterization of the interferon gamma response to Lawsonia intracellularis using an equine proliferative enteropathy challenge (EPE) model. Vet Immunol Immunopathol 2011;143:55–65. 33. Jacobson M, Aspan A, Ko


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nostics of Lawsonia intracellularis performed by PCR, sero- logical and post mortem examination, with special emphasis on sample preparation methods for PCR. Vet Microbiol 2004;102:189–201.


34. Herbst W, Hertrampf B, Schmitt T, et al. [Diagnosis of Lawsonia intracellularis using the polymerase chain reaction (PCR) in pigs with and without diarrhea and other animal species]. Dtsch Tierarztl Wochenschr 2003;110:361–364.


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40. Pusterla N, Vannucci FA, Mapes SM, et al. Efficacy of an avirulent live vaccine against Lawsonia intracellularis in the prevention of proliferative enteropathy in experimen- tally infected weanling foals. Am J Vet Res 2012;73:741– 746.


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aVeterinary Diagnostic Laboratory, College of Veterinary


Medicine, University of Minnesota, 1333 Gortner Avenue, St. Paul, MN 55108. Phone: (612) 625-8787; Fax: (612) 624- 8707;


e-mail: vdl@umn.edu. Web site: http://www.vdl.umn.


edu. b


Real-time PCR Research and Diagnostics Core Facility, School of Veterinary Medicine, Department of Medicine and Epidemiology, 3110 Tupper Hall, University of California, One Shields Avenue, Davis, CA 95616. Phone: (530) 752-7991; Fax: (530) 754-6862; e-mail: carjohnson@ucdavis.edu; Web site:


http://www.


vetmed.ucdavis.edu/vme/taqmanservice/diagnosics.html. c


Equine Diagnostic Services, 1501 Bull Lea Road, Suite 104, Lexington, KY 40511. Phone: (859) 288-5255. Web site:


divisions/laboratory for more info on IPMA analysis. d


http://www.edslabky.com. e


Vetastarch, Abbott Animal Health, Abbott Park, IL 60064. fPlavix, Bristol-Myers Squibb, New York, NY 10154.


gEnterisol Ileitis, Boehringer Ingelheim Vetmedica, Inc., St. Joseph, MO 64506.


Hagyard Laboratory, Hagyard Equine Medical Institute, 4250


Iron Works Pike, Lexington, KY 40511. Phone: (859) 259- 3685; Fax: (859) 258-9652. Web site: http://hagyard.com/


AAEP PROCEEDINGS  Vol. 62  2016 447


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