Before the pandemic, the rate of kindergarten students who received their measles, mumps, and rubella vaccination had reached just over 98% statewide, but dropped to 95.1% amid the pandemic.

Measles has been spreading across the U.S. for the last several weeks, sickening people in at least nine states amid a growing outbreak in western Texas. Several people have been hospitalized and at least one unvaccinated school-aged child in Texas has died,

Measles are spreading and have already caused one death. Here's what you need to know according to the CDC and medical experts.