The United States is facing its second surge in measles cases. Large outbreaks in Utah, Arizona and South Carolina are continuing to grow. CNN is tracking the cases.

Canada has had more than a year of continuous measles transmission. The United States has until January to limit cases before losing status.

The Centers for Disease Control and Prevention (CDC) today said the United States has 1,912 confirmed measles cases so far in ...

The Connecticut Department of Public Health today said it has confirmed a case of measles in a Fairfield County child who is ...

Spartanburg's 'accelerating' measles outbreak has surpassed 100 cases. The underlying causes go beyond simple exposure into ...

The United States has managed to keep a lid on measles for a quarter of a century. That’s now at risk. Johns Hopkins’ Center for Outbreak Response Innovation reports 1,277 confirmed cases of ...

RFK Jr. has eroded public trust in vaccines, critics say. Now, the U.S. stands to lose its measles-free status.

I was recently asked why Canada, which "has mandatory vaccination requirements for measles," is experiencing an outbreak in ...