Confirmed Legionnaires’ Disease Cases in the Middlesex-London Region
The Middlesex-London Health Unit is providing an update to the community following the redeclaration of the Legionnaires’ Disease outbreak. A source for the outbreak has now been identified and remediation is underway. Please note: Data will be updated each week on Tuesday afternoons.
Outbreak-Associated Case Details
Data extracted: August 26, 2025 (8:30am)
Count | 95 |
Since the outbreak was declared over on August 6, 2025 | +25 |
Sex Female Male |
35 (37%) 60 (63%) |
Age (years) Under 18 18-64 65+ |
0 (0%) 57 (60%) 38 (40%) |
Clinical details Current Hospitalizations Total Hospitalizations Fatality |
6 (6%) 86 (91%) 4 (4%) |
For more information including, symptoms, risk, diagnosis, and prevention click here.