A vaccinated adult from Denver County got the first confirmed breakthrough case of measles, the state health department ...

The U.S. surpassed 1,000 measles cases Friday, even as Texas posted one of its lowest counts of newly confirmed cases since ...

A fifth case of measles is now confirmed in Colorado. It's the third case in Denver. An adult got measles after traveling to ...

Confirmed U.S. measles cases broke 1,000 in the second week of May, surpassing last year's total by nearly four times.

Colorado on Friday reported its fifth incidence of measles this year, and, for the first time in the spate of cases, the ...

The U.S. Centers for Disease Control and Prevention updated the numbers of measles cases in the country on Friday. Here's ...

The U.S. has surpassed 1,000 measles cases for the first time in five years, according to new data from the CDC published Friday.

More than 700 cases of measles have been confirmed in an outbreak across Texas, state health officials reported Tuesday, as other outbreaks of the highly contagious illness spread across dozens of ...

As outbreaks grow, local governments say efforts to fight measles with vaccination clinics have been shut down by abrupt ...