Breaking News
National Equine Health Stakeholder Call-October 2026
Learn More

Disease Alerts

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.



1 Week
2 Weeks
1 Month
2 Months
3 Months
3+ Months
No Results

The color range is based off of the selected End Date. If the End Date doesn't have a value it will use Today's Date.

West Nile Virus
Niagara and Hamilton Municipalities and Perth County, ON
Alert ID: 1082
October 04, 2018

Ontario Ministry of Agriculture, Food and Rural Affairs

Between September 17 and October 2, 2018, the Ontario Ministry of Agriculture, Food and Rural Affairs was notified of five  positive test results for West Nile Virus (WNV) infection in horses.  The horses ranged in age from 2 to 6 years of age and they were all female. Clinical signs included muscle fasciculations, ataxia, collapse in the front or hind end and recumbency. All horses recovered with treatment. The horses were located in the following counties; 2 from the Regional Municipality of Niagara, 2 from Perth County and 1 from the Regional Municipality of Hamilton. The total number of cases in Ontario  for  2018 is seven. www.omafra.gov.on.ca/english/livestock/horses/facts/nhd_surv2018.htm
Search for County