Overview
- More than 5,000 cases have been recorded across multiple provinces with hundreds of hospitalizations and at least two infant deaths, according to public health reports.
- PAHO meets next week in Mexico City to review Canada’s data and could strip the measles-free designation, triggering a required corrective action plan to regain it.
- Recent surveillance still shows activity, with 19 new cases reported for the week of October 18 and 136 recent cases across five jurisdictions.
- Most Canadian infections occurred in people who were unvaccinated or under-vaccinated as coverage fell below the roughly 95% two-dose threshold, including a drop to about 72% for second-dose MMR by age 7 in Alberta.
- The United States has logged roughly 1,600–1,650 cases in 2025 across dozens of outbreaks with three deaths, and experts say loss of its elimination status could become a risk in 2026 even though it is unlikely at the upcoming review.