Ottawa Public Health (OPH) is investigating a cluster of confirmed measles infections, also known as cases, involving five Ottawa residents who are all related. OPH is directly notifying individuals who may have been exposed to the measles virus, where contact information is available. This public service announcement is intended to reach individuals who may have been exposed but could not be reached directly or whose contact information was incomplete or unavailable.
At this time, the risk to the general population remains low. So far in 2025, OPH has confirmed ten measles infections, or cases, in Ottawa residents.
Possible exposure locations
Individuals who visited the following locations in Ottawa, on the dates and times below, may have been exposed to the measles virus.
- St. Clement Parish at Saint Anne Church at 528 Old St. Patrick Street
- When: Sunday October 12 between 10:20 am and 2 pm
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Monitor until Sunday, November 2
- St. George’s Parish at 415 Piccadilly Avenue
- When: Monday, September 29 to Thursday, October 2, daily between 9 am and noon
- Monitor until Thursday, October 23
Click here for more info and learn what to do if you were exposed: ottawa.ca
