Overview
- The Public Health Agency of Canada reported 5,138 measles cases by October 25, 2025, including 4,777 confirmed.
- Federal officials said two newborns with congenital measles have died in the current outbreak.
- Experts say transmission has been concentrated in under‑vaccinated pockets, disproportionately affecting some Mennonite, Amish and other Anabaptist communities.
- Ontario and Alberta account for most infections, with 2,392 and 1,944 cases respectively, while British Columbia, Manitoba and Saskatchewan report hundreds more.
- Canada can regain elimination only after 12 consecutive months without transmission of the circulating strain, and authorities are escalating vaccination efforts to reach susceptible groups.