Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

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West Nile Virus

Bruce County, Waterloo County, Renfrew County, District of Muskoka and the Regional Municipality, ON

Alert ID: 669

September 18, 2017

Source: Ontario Ministry of Agriculture, Food and Rural Affairs

Since September 15^th, 5 cases of West Nile Virus in Bruce County, Waterloo County, Renfrew County, District of Muskoka and the Regional Municipality were reported to the Ontario Ministry of Agriculture, Food and Rural Affairs. The horses included 2 gelding and 3 mares with ages ranging from 4 to 20 years. Clinical signs ranged from hind end weakness and lethargy to recumbency and severe hyperesthesia. Two of the horses were euthanized and three are recovering under veterinary supervision. Four horses were unvaccinated and one had an unknown vaccination history. The total number of cases reported in Ontario this year is 12.

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