At least 1,277 cases have been reported as of Monday, surpassing the previous record set in 2019, despite 2025 being only halfway over.

People who attended a prenatal clinic in Fort St. John, B.C., have been told they may have been exposed to measles.

Four more cases of measles have been reported in Kentucky, just after an outbreak was reported in the state last week.

Health experts describe the count as “devastating,” as the virus was deemed virtually eradicated in the early 2000s.