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Discussion on Research Summary: Case Study of Outbreak of Proliferative Enteropathy in Canada
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Moderator:
DrO
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Posted on Friday, Jan 11, 2008 - 9:33 am:
Here we present the summary of a case study of an outbreak of Proliferative Enteropathy on a Canadian farm that we present here to make breeders more aware of this growing disease problem of weight loss and diarrhea in weanlings, for more see the article associated with this discussion.
DrO
Can Vet J. 2007 September; 48(9): 927–930.
An outbreak of protein-losing enteropathy associated with Lawsonia intracelluaris infection was diagnosed in 6 standardbred foals from a farm in Ontario. Wildlife exposure may have been involved in the perpetuation of disease in this outbreak. The clinical presentation, treatment, outcomes, and pathological findings are described.
In December 2002–January 2003 over a 4-week period, protein-losing enteropathy (PLE) as a result of Lawsonia intracellularis infection was diagnosed in 6 standardbred weanlings (2 colts, 4 fillies) on a farm in southwestern Ontario. All foals were between 7 and 8 mo of age when presented to the Ontario Veterinary College Veterinary Teaching Hospital (OVC-VTH) for diarrhea and weight loss. All 6 affected foals had been born on this farm and, following weaning at 5 mo of age, had been housed outside in 2 groups according to sex. A further 18 foals on the farm remained clinically normal. No previous cases of PLE had been reported from this particular owner’s herd. However, the farm on which the 6 affected foals had been raised had been purchased 2 y earlier. Six years before, in 1997, while under the management of the previous owner, PLE associated with Lawsonia intracellularis had been diagnosed in 3 foals from this farm at the Animal Health Laboratory, University of Guelph. Between 2000 and 2001, no horses had been on the farm for approximately 12 mo. The 6 foals in this 2002–2003 outbreak were of a different breed and were unrelated to the previous cases. The current owner’s breeding herd had been moved from a farm where PLE had not been identified.
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