A premature newborn in Ontario, Canada, has died after contracting measles—the first death this year linked to an ongoing outbreak of the vaccine-preventable disease in the country.

Ontario health officials reported the death Thursday. The child caught the viral infection from their mother, who was not vaccinated from measles. Canada, the U.S., and Mexico have all faced surging outbreaks of measles in 2025, fueled by low vaccination rates in certain regions.

“It is with deep sadness that I confirm that an infant, born prematurely and infected with measles, has tragically passed away in southwestern Ontario,” said Kieran Moore, the chief medical officer of health in Ontario, in a statement.

The ongoing measles outbreaks in North America are believed to have first started in Ontario las

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