As of the end of June 2025, more than a third of Colorado's measles infections for the year have been breakthrough cases in vaccinated people.

The U.S. is having its worst year for measles spread since 1991, with a total of 1,288 cases nationally and another six ...

The Centers for Disease Control and Prevention says the U.S. is currently experiencing its worst measles outbreak in more ...

There have been more measles cases in the US this year than any other since the disease was declared eliminated a ...

Measles cases in the U.S. are at their highest in three decades The U.S. is having its worst year for measles spread in more ...

Measles cases in the United States have reached their highest number in more than 30 years, according to new federal data ...

U.S. measles cases hit 1,277—the worst outbreak since the disease was declared eliminated in 2000, surpassing 2019's peak.

The U.S. is having the worst measles outbreak in decades. Here’s what experts recommend you do to avoid getting sick.

There have been 1,267 confirmed cases of measles in the United States this year, according to the Centers for Disease Control ...

Other U.S. states with active outbreaks — which the CDC defines as three or more related cases — include Arizona, Colorado, ...

The number of patients with confirmed cases of measles increased by six over the past two weeks in Kansas. Here’s where the ...