New data shows 663 confirmed measles cases in Texas since late January. In an exclusive interview with NBC News, a CDC official says the outbreak is not contained and it is the biggest outbreak the ...

A team of senior leaders from the CDC toured their drive-through testing and vaccine sites today, and talked about what ...

New Mexico had 66 measles cases, with no new infections reported yet this week, part of the nearly 900 cases in the U.S.