# With measles cases in the United States still mounting, neighbouring countries Canada and Mexico are also experiencing significant outbreaks, in some cases fatal. Authorities in the Canadian province Ontario announced a premature infant born with a measles infection had died. At least four people have died in Mexico in 2025, with three in the US, all of whom were unvaccinated. This years’ measles outbreaks are the biggest Canada and Mexico have seen in decades, with the World Health Organisation warning low vaccination rates are considered the key driver.
Measle outbreaks in the Americas, Mexico and Canada turn deadly