North America has three other large outbreaks. The longest, in Ontario, Canada, has resulted in 2,276 cases from mid-October ...

Confirmed cases of measles in Canada are nearly three times higher than in the US, despite Canada's far smaller population.

Alberta doctors say there is no doubt the measles outbreak in the province is an epidemic, even if the government has not ...

The U.S. is having its worst year for measles spread since 1991, with a total of 1,288 cases nationally and another six months to go. But in Gaines County, Texas, which was once the nation’s epicenter ...

Alberta has significantly exceeded the United States in confirmed measles cases, reporting 1,314 cases since March.In 2025, ...

Alberta has now confirmed more measles cases than the entire United States has reported this year. The province has been ...

Local health officials are ending weekly measles reports for a southern Ontario hot spot that had led the country in ...

Health officials in Illinois and North Dakota say their states' measles outbreaks are over, pointing to a continuing slowdown of measles spread in the U.S. during vaccine-preventable disease's ...