On Wednesday, June 20, 2018, an attending veterinarian confirmed an outbreak of botulism in Chester Basin, Nova Scotia, Canada, according to a Equine Disease Communication Center outbreak notification.

Image/Alexas_Fotos
Image/Alexas_Fotos

A 12-year-old Arabian/Quarter Horse cross gelding and a 26-year-old Arabian gelding were euthanized. An 8-year-old Standardbred mare, 7-year-old and 10-year-old Zonkey jack and jenny are showing clinical signs including inability to swallow, muscle fasciculations/tremors, and increased recumbency. One horse also presented with a stiff strided gait and another with colic.  8-20 horses were exposed but no quarantine is in place as botulism cannot be spread from horse to horse.

Botulism is a progressive, flaccid paralysis resulting from Clostridium botulinum toxin production and absorption that can be rapidly fatal if not aggressively treated from the first signs of intoxication.

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