Ontario
Equine Disease Alerts
Risk Assessment
Risk Level
🔴 High
Active outbreak activity - consult your vet
Cases (30 days)
11
Total Cases
132
Total Alerts
114
Disease Activity in Ontario
Weekly case intensity by disease - Hover for details
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Strangles
44
WNV
9
Flu
8
EEE
8
EHV-1 Neuro
6
Jul
Aug
Sep
Oct
Nov
Dec
Strangles
WNV
Flu
EEE
EHV-1 Neuro
LessMore
💡
Ontario has recorded activity for 5 different diseases. Strangles is the most prevalent with 44 cases.
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Equine Health Resources
Resource information for Ontario is not yet available. Please contact your state agriculture department for equine health resources.
Recent Alerts in Ontario
Stranglesvoluntary quarantine
Grey
Boarding Facility
1 cases
Dec 18, 2025
Stranglesvoluntary quarantine
Grey
Farm
1 cases
Dec 16, 2025
Stranglesvoluntary quarantine
Regional Municipality of Waterloo
Farm
2 cases
Dec 15, 2025
Stranglesvoluntary quarantine
District of Temiskaming
Boarding Facility
3 cases
Dec 15, 2025
Stranglesvoluntary quarantine
District of Sudbury
1 cases
Dec 15, 2025
Stranglesvoluntary quarantine
Middlesex
Training Facility
3 cases
Dec 10, 2025
Stranglesvoluntary quarantine
Wellington
Private Facility
1 cases
Nov 21, 2025
Equine Herpesvirus-1 Neurologicvoluntary quarantine
Regional Municipality of Waterloo
Boarding Facility
1 cases
Oct 30, 2025
West Nile Virusactive
Grey
Farm
1 cases
Oct 23, 2025
Stranglesvoluntary quarantine
County of Peterborough
Boarding Facility
2 cases
Oct 23, 2025
Stranglesvoluntary quarantine
District of Sudbury
Private Facility
1 cases
Oct 20, 2025
Stranglesvoluntary quarantine
Oxford
Private Facility
1 cases
Oct 20, 2025
West Nile Virusactive
Grey
Private Facility
1 cases
Oct 10, 2025
Eastern Equine Encephalitisactive
Simcoe
Private Facility
1 cases
Oct 6, 2025
Stranglesvoluntary quarantine
Haldimand
Private Facility
1 cases
Oct 6, 2025
West Nile Virusactive
District of Sudbury
Private Facility
1 cases
Sep 24, 2025
Stranglesvoluntary quarantine
Regional Municipality of Waterloo
Farm
1 cases
Sep 22, 2025
West Nile Virusactive
Regional Municipality of Peel
Farm
1 cases
Sep 22, 2025
West Nile Virusactive
District of Parry Sound
1 cases
Sep 9, 2025
West Nile Virusactive
Regional Municipality of Waterloo
Farm
1 cases
Sep 8, 2025
Equine Herpesvirus-1 Neurologicvoluntary quarantine
Regional Municipality of Halton
Farm
1 cases
Sep 5, 2025
Eastern Equine Encephalitisactive
Regional Municipality of Halton
Farm
1 cases
Sep 3, 2025
Eastern Equine Encephalitisactive
Renfrew
Farm
1 cases
Sep 3, 2025
West Nile Virusactive
Grey
Farm
1 cases
Aug 29, 2025
Stranglesvoluntary quarantine
District of Rainy River
Farm
1 cases
Aug 29, 2025
West Nile Virusactive
District of Algoma
Farm
1 cases
Aug 29, 2025
Eastern Equine Encephalitisactive
City of Ottawa
Farm
1 cases
Aug 26, 2025
Eastern Equine Encephalitisactive
City of Hamilton
Farm
1 cases
Aug 26, 2025
Stranglesvoluntary quarantine
Regional Municipality of Waterloo
Farm
1 cases
Aug 25, 2025
Eastern Equine Encephalitisactive
City of Hamilton
Farm
1 cases
Aug 18, 2025
West Nile Virusactive
Regional Municipality of Waterloo
Farm
1 cases
Aug 15, 2025
Eastern Equine Encephalitisactive
Wellington
Farm
1 cases
Aug 14, 2025
Eastern Equine Encephalitisactive
Wellington
Private Facility
1 cases
Jul 29, 2025
Stranglesvoluntary quarantine
Middlesex
Boarding Facility
1 cases
Jul 23, 2025
Stranglesvoluntary quarantine
Kawartha Lakes
Private Facility
1 cases
Jul 23, 2025
Stranglesvoluntary quarantine
Kawartha Lakes
Private Facility
1 cases
Jul 10, 2025
Stranglesvoluntary quarantine
Grey
Private Facility
1 cases
Jul 2, 2025
Stranglesvoluntary quarantine
Regional Municipality of Halton
Boarding Facility
1 cases
Jul 2, 2025
Equine Herpesvirus-1 Neurologicvoluntary quarantine
City of Toronto
Racetrack
1 cases
Jun 20, 2025
Stranglesvoluntary quarantine
Regional Municipality of Halton
Boarding Facility
1 cases
May 22, 2025
Equine Influenzavoluntary quarantine
Essex
2 cases
May 16, 2025
Equine Influenzavoluntary quarantine
Wellington
Private Facility
1 cases
May 16, 2025
Equine Influenzavoluntary quarantine
Regional Municipality of Niagara
1 cases
May 16, 2025
Equine Influenzavoluntary quarantine
Regional Municipality of Niagara
Boarding Facility
2 cases
May 16, 2025
Equine Influenzavoluntary quarantine
Essex
Boarding Facility
1 cases
May 16, 2025
Stranglesvoluntary quarantine
Brant
Private Facility
1 cases
May 5, 2025
Stranglesvoluntary quarantine
Dufferin
Private Facility
1 cases
May 5, 2025
Stranglesvoluntary quarantine
District of Temiskaming
1 cases
Apr 24, 2025
Equine Influenzavoluntary quarantine
Hastings
1 cases
Apr 24, 2025
Equine Herpesvirus-1 Neurologicvoluntary quarantine
Wellington
Boarding Facility
1 cases
Apr 14, 2025