title: Lawsonia intracellularis-associated ulcerative and necro-hemorrhagic enteritis in 5 weanling foals.
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.
authors.affiliation: Department 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.
authors.forename: Luis G
authors.initials: LG
authors.lastname: Arroyo
authors.forename: Federica
authors.initials: F
authors.lastname: Ter Woort
authors.forename: John D
authors.initials: JD
authors.lastname: Baird
authors.forename: Laetitia
authors.initials: L
authors.lastname: Tatiersky
authors.forename: Josepha
authors.initials: J
authors.lastname: Delay
authors.forename: Tony
authors.initials: T
authors.lastname: van Dreumel
mesh_terms: D000818:Animals; D045824:Desulfovibrionaceae Infections / Q000175:diagnosis / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D004751:Enteritis / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D017809:Fatal Outcome; D005260:Female; D006734:Horse Diseases / Q000382:microbiology* / Q000473:pathology; D006736:Horses; D020639:Lawsonia Bacteria; D008297:Male