West Nile Virus (WNV) has been confirmed in the District of Algoma, Ontario. A 2.5 month old colt died after developing neurologic signs (posterior paresis/paralysis, hyperesthesia) and fever (102.7 F). Serum WNV IgM ELISA was positive. The horse is deceased. The horse was not vaccinated against WNV. There is one additional suspected case.
This is the second confirmed case of equine WNV in Ontario this year . To see past and present WNV cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal.