Equine Canada’s Health and Welfare Committee is notifying horse owners that Neurotropic Equine Herpes Virus-1 (nEHV-1) has been reported in a horse in the province of Quebec. This is the neurological strain of Equine Herpes Virus 1 (EHV 1). Outbreaks of nEHV-1 are contagious and have a significant risk of mortality.

On February 20, a Quarter Horse stable in Chicoutimi, QC, noticed one of its top mares was exhibiting some neurological health abnormalities. The mare was referred to the Large Animal clinic at the University of Montreal Veterinary Hospital in Saint-Hyacinthe, QC, on February 23 and was admitted directly to the isolation unit and was not in contact with any other animals at the hospital. Within a few hours, the mare rapidly deteriorated and was humanly euthanized. Subsequent tests determined that she had nEHV-1.

The stable in Chicoutimi has been put on full quarantine and all 53 horses are being carefully monitored for symptoms. Strict biosecurity procedures have been put in place to prevent spread of this disease from this farm.

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