How Canada became the centre of a measles outbreak in North America
In the US, the rise of measles has been partly linked to vaccine-hesitant public figures, like Health Secretary Robert F Kennedy Jr - although he has since endorsed the measles vaccine as safe.
But Canada does not have a prominent RFK Jr-like figure in public health, noted Maxwell Smith, a professor of public health at Western University in southern Ontario.
Canada's 2025 figures have surpassed both. The country has not seen this many measles cases since the illness was declared eliminated in 1998. Before this year, the last peak was in 2011, when about 750 cases were reported.