Canada Declares National Measles Outbreak Over

The Public Health Agency of Canada has officially ended the emergency status following a two-year nationwide measles outbreak.

Updated on Oct. 19, 2026 in COVID-19

Canada Declares National Measles Outbreak Over

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The Public Health Agency of Canada has declared an end to the national measles outbreak that began in October 2024. This two-year event resulted in 6,417 total cases across the country and led to the loss of Canada's global measles elimination status in November 2025.

Why it matters

The end of the outbreak marks a critical shift for public health officials who must now focus on achieving 12 months of sustained virus suppression. Demonstrating improved surveillance and response capabilities is essential for the country to regain its international measles elimination status.

The outbreak saw 2,390 cases in Ontario, 2,299 in Alberta, and 1,033 in Manitoba. Although the main event has concluded, three new unrelated cases were confirmed between October 4 and October 10, 2026.

The players

Public Health Agency of Canada

This federal agency is responsible for public health, emergency preparedness, and the monitoring of infectious disease outbreaks across the country.

Pan American Health Organization

This international public health agency works to improve health and living standards in the countries of the Americas and monitors global disease elimination statuses.

The details

The outbreak was officially declared over on October 19, 2026, as more than two months had passed since the final reported case. Most individuals affected during the two-year period were not vaccinated against the virus.

The national outbreak began in New Brunswick in October 2024.
Canada lost its global measles elimination status in November 2025.
The last confirmed instance of measles was reported in August 2026.
Three new unrelated cases were reported from October 4 to October 10, 2026.
The Public Health Agency of Canada declared the outbreak over on October 19, 2026.

The Big Picture

This development aligns with the strict requirements of the Pan American Health Organization measles elimination status criteria. Canada must now maintain a 12-month period without sustained transmission to successfully regain its international standing.

The end of the outbreak highlights the ongoing necessity for residents to maintain up-to-date vaccination schedules to prevent future spread. Health officials now emphasize the importance of robust surveillance to protect the community from recurring outbreaks.

The takeaway

Public health experts suggest that consistent vaccination coverage is the primary tool for preventing the return of eliminated diseases. Residents are encouraged to consult their local health providers to ensure their immunization records are current.