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Clostridium botulinum type D intoxication in a dairy herd in Ontario
1Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1.
Abstract:
Thirty-four Holstein cows died after exposure to Clostridium botulinum type D toxin, presumably from contaminated haylage. The presence of type D toxin in ruminal contents was confirmed by mouse inoculation. This is the first confirmation by direct toxin isolation of C. botulinum type D toxin in cattle in North America.