# Canada measles outbreak concluded

> Live situation record from CLSTR: https://clstr.news/situations/canada-measles-outbreak
> Updated: 2026-10-19T20:55:04.000Z. Sources: 9. Developments: 2.

The Public Health Agency of Canada (PHAC) has officially declared the end of the two-year measles outbreak that began in New Brunswick in October 2024. The declaration follows more than two months without any new cases linked to the outbreak.

Throughout the period of transmission, 6,417 cases were recorded across ten provinces and territories. Ontario reported the highest number of infections with 2,390 cases, followed by Alberta with 2,299 and Manitoba with 1,033. The outbreak resulted in the deaths of two infants in Ontario and Alberta who were infected in utero.

Due to sustained transmission, Canada lost its global measles elimination status in November 2025. To regain this status, the Pan American Health Organization (PAHO) requires Canada to maintain zero transmission for at least 12 months and demonstrate improved surveillance and response capabilities. Chief Public Health Officer Dr. Joss Reimer has urged citizens to maintain up-to-date vaccinations, noting that the virus continues to circulate globally.

## Claims

- The Public Health Agency of Canada declared the measles outbreak officially over. (corroborated by 7 sources)
- A total of 6,417 measles cases were recorded during the outbreak. (corroborated by 7 sources)
- The outbreak began in New Brunswick in October 2024. (corroborated by 7 sources)
- Ontario reported 2,390 cases, Alberta reported 2,299 cases, and Manitoba reported 1,033 cases. (corroborated by 7 sources)
- Canada lost its measles elimination status in November 2025. (corroborated by 7 sources)
- Two infants died after being infected with measles while in the womb. (corroborated by 4 sources)
- To regain elimination status, Canada must keep transmission interrupted for at least 12 months. (corroborated by 3 sources)
- Most people who contracted the disease were not vaccinated. (corroborated by 3 sources)

## Timeline

### 2026-10-19: Canada declares end to two-year measles outbreak

Canada's Public Health Agency has declared a two-year measles outbreak over after 6,417 cases across 10 provinces and territories. The country must now work to regain its global elimination status.

8 sources. https://clstr.news/cluster/canada-declares-end-to-two-year-measles-outbreak

### 2026-10-16: Manitoba declares end to provincewide measles outbreak

Manitoba health officials have declared a provincewide measles outbreak over after no new cases were reported since August. The 20-month outbreak involved 1,038 cases and 52 hospitalizations.

3 sources. https://clstr.news/cluster/manitoba-declares-end-to-provincewide-measles-outbreak

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Cite as: Canada measles outbreak concluded. CLSTR, https://clstr.news/situations/canada-measles-outbreak