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Published on: November 30, 2021
Lawsonia intracellularis-associated ulcerative and necro-hemorrhagic enteritis in 5 weanling foals
Luis G Arroyo1, Federica Ter Woort, John D Baird
1Department of Clinical Studies (Arroyo, ter Woort, Baird), and Department of Pathobiology (Tatiersky), Ontario Veterinary College; Animal Health Laboratory (DeLay, van Dreumel), University of Guelph, Guelph, Ontario N1G 2W1.
Abstract:
This report describes 5 cases of fatal Lawsonia intracellularis-associated ulcerative and necro-hemorrhagic enteritis in weanling Thoroughbred and Standardbred foals. The lesions are similar to those of the L. intracellularis-associated ulcerative and necro-hemorrhagic enteritis syndrome in pigs. Two foals had concurrent severe typhlo-colitis as a result of a large burden of encysted cyathostomes. The clinical, diagnostic, and therapeutic challenges, and the potential complications encountered during the management of such cases are discussed.
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