The first measles death in the growing outbreak in West Texas was a school-aged child. The child was unvaccinated and had been hospitalized in Lubbock, Texas, said Lauren Adams, Lubbock city spokesperson.

Measles is a respiratory virus that can survive in the air for up to two hours. Up to 9 out of 10 people who are susceptible will get the virus if exposed, according to the U.S. C

A child who wasn’t vaccinated died in a measles outbreak in rural West Texas, officials there said Wednesday, the first U.S. death from the highly contagious respiratory disease since 2015.