Strangles in Ontario
As of September 2026, Ontario has 1 Strangles alert in the past 30 days (1 confirmed case).
Risk Level
🟡 Moderate
Isolated cases — monitor the situation
Cases (30 days)
1
Total Cases
78
Counties Affected
29
Most recent Strangles alert in Ontario: Aug 31, 2026
Strangles Alerts in Ontario
Grey, Ontario
Aug 31, 2026 · voluntary quarantine
1
confirmed
District of Temiskaming, Ontario
Jun 24, 2026 · voluntary quarantine
3
confirmed
Grey, Ontario
May 12, 2026 · voluntary quarantine
1
confirmed
Simcoe, Ontario
Apr 23, 2026 · voluntary quarantine
1
confirmed
Wellington, Ontario
Mar 19, 2026 · voluntary quarantine
1
confirmed
District of Cochrane, Ontario
Feb 17, 2026 · voluntary quarantine
1
confirmed
Essex, Ontario
Feb 13, 2026 · voluntary quarantine
1
confirmed
Regional Municipality of Niagara, Ontario
Feb 9, 2026 · voluntary quarantine
1
confirmed
Dundas and Glengarry, Ontario
Feb 3, 2026 · voluntary quarantine
1
confirmed
Dufferin, Ontario
Feb 3, 2026 · voluntary quarantine
1
confirmed
Elgin, Ontario
Jan 7, 2026 · voluntary quarantine
1
confirmed
Grey, Ontario
Jan 7, 2026 · voluntary quarantine
1
confirmed
Regional Municipality of Durham, Ontario
Jan 7, 2026 · voluntary quarantine
1
confirmed
Elgin, Ontario
Jan 7, 2026 · voluntary quarantine
1
confirmed
Middlesex, Ontario
Jan 3, 2026 · voluntary quarantine
7
confirmed
Grey, Ontario
Dec 18, 2025 · voluntary quarantine
1
confirmed
Grey, Ontario
Dec 16, 2025 · voluntary quarantine
1
confirmed
Regional Municipality of Waterloo, Ontario
Dec 15, 2025 · voluntary quarantine
2
confirmed
District of Temiskaming, Ontario
Dec 15, 2025 · voluntary quarantine
3
confirmed
District of Sudbury, Ontario
Dec 15, 2025 · voluntary quarantine
1
confirmed
Middlesex, Ontario
Dec 10, 2025 · voluntary quarantine
3
confirmed
Wellington, Ontario
Nov 21, 2025 · voluntary quarantine
1
confirmed
County of Peterborough, Ontario
Oct 23, 2025 · voluntary quarantine
2
confirmed
District of Sudbury, Ontario
Oct 20, 2025 · voluntary quarantine
1
confirmed
Oxford, Ontario
Oct 20, 2025 · voluntary quarantine
1
confirmed
Showing the 25 most recent of 58 total alerts.
About Strangles
Highly contagious bacterial infection of the upper respiratory tract
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