The spread of measles both between provinces and within is keeping doctors and health officials across much of Canada on their toes.

As a longtime wildfire manager in Alberta, Canada, Ed Trenchard is used to making tough decisions during volatile emergencies. But he has had to make many this year during the country’s worst wildfire ...

Measles is spreading so quickly in Alberta, Canada, that health officials have stopped publicly releasing information about local exposures in the hardest hit areas and are instead issuing blanket ...