A Quarter Horse breeding farm in Vermilion Parish County, Louisiana, has had many horses become acutely sick since December 3. Two horses died within 48 hours of onset of clinical signs. Ten others were euthanized due to rapid decline. Preliminary investigation suggested that contamination of a common feed source is responsible. Botulism is the suspected disease.
As of December 14, confirmation of diagnosis is still pending. Currently, there are nine horses hospitalized at LSU. Additional horses showing more mild signs are receiving care on the affected property. Investigation of feed is ongoing and has been transferred to the FDA.
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