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

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

Giving a vaccine early can still fall within government guidelines. The CDC recommends a child get the second MMR vaccine ...

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.

Doctors groups and public health organizations are suing the U.S. government over the decision to stop recommending COVID-19 ...