After a pediatric patient in West Texas died of measles complications, hospital officials are urging the community to take the outbreak seriously, and to educate themselves about the virus and vaccination.

Here’s what to know about the outbreak after the first U.S. death since 2015 from the highly contagious—but preventable—respiratory disease.

NBC 5 is taking a closer look at measles vaccinations in North Texas, including which county has seen the biggest decline and which DFW residents may need a booster. State data shows that thousands fewer students are receiving the measles vaccine in North Texas compared to just a few years ago.