A case of Equine Herpesvirus-Neurologic was reported in Northumberland County, ON on April 09, 2021 to the Ontario Ministry of Agriculture and Food (OMAFRA). The horse is a 24-year-old draft-cross mare at a boarding facility whose onset of clinical signs – ataxia and difficulty urinating – began on March 31. The affected horse is being treated and is recovering at a referral hospital. No other horses on the property are showing clinical signs.
A case of Equine Herpesvirus-Abortion was also reported to OMAFRA on April 7, occurring at a farm in the Regional Municipality of York, ON. There, a 23-year-old mare aborted her foal at 315 days of gestation. The affected mare has been isolated on the property; no other mares are currently affected.
In both cases, under veterinary supervision the facility managers have implemented biosecurity protocols and animal movement restrictions.