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Measles

Measles Outbreak in Ottawa: Public Health Issues Alert and Guidance

Strategic Insights

— 1 min read

A cluster of five confirmed measles infections involving Ottawa residents has prompted Ottawa Public Health (OPH) to issue a public service announcement, warning individuals who may have been exposed to the measles virus. As of 2025, OPH has confirmed ten measles infections in Ottawa residents, with the risk to the general population remaining low. To mitigate potential exposure, individuals who visited specific locations in Ottawa are advised to take specific precautions.

Key Takeaways:

  • OPH is investigating a cluster of five confirmed measles infections involving Ottawa residents, all related, and has confirmed ten cases in Ottawa residents as of 2025.
  • Individuals who visited St. Clement Parish at Saint Anne Church on October 12 between 10:20 am and 2 pm, and St. George's Parish from September 29 to October 2, may have been exposed to the measles virus.
  • Affected individuals are asked to monitor for symptoms for 21 days from their date of exposure, which can appear up to 21 days after exposure but usually occur within seven to 12 days.
  • Symptoms include high fever, cough, runny nose, white spots in the mouth, and red watery eyes that may be sensitive to light.
  • A red rash usually develops that starts on the face and spreads down the body to the arms and legs, lasting four to seven days.
  • Individuals should check their vaccination records for measles-containing vaccines and ensure they are protected.
  • People born before 1970 are generally considered immune (protected) to measles.

Statistics:

  • 5 confirmed measles infections involving Ottawa residents
  • 10 measles infections confirmed by OPH in Ottawa residents as of 2025
  • 21 days: the duration for which individuals should monitor for symptoms
  • 7-12 days: the timeframe within which symptoms usually appear
  • 4-7 days: the duration of the rash
  • 2 pm: the time exposure occurred at St. Clement Parish
  • 9 am-noon: the daily time exposure occurred at St. George's Parish
  • October 12: the date exposure occurred at St. Clement Parish
  • September 29-October 2: the dates exposure occurred at St. George's Parish

Sources:

  • Ottawa Public Health (OPH) - [OttawaPublicHealth.ca](http://OttawaPublicHealth.ca)
  • Health811 - [www.Health811.ca](http://www.Health811.ca)

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