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 ...

CDC warns the country could lose its measles elimination status if transmission continues for 12 months, with outbreaks ...

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

Alberta has surpassed the United States in confirmed measles cases, after 30 new cases were diagnosed over the weekend.

Health officials in Illinois and North Dakota say their measles outbreaks are over. The U.S. added 21 new cases since July 9. States with active outbreaks include Arizona, Colorado, Georgia, Iowa, ...