Texas authorities on Wednesday announced the first measles death in the state's outbreak of the highly contagious disease. The death, of a school-age child, is the first measles death in the U.S. since 2015,

A child in West Texas has died of measles, state health officials said on Wednesday, the first reported U.S. death from the highly contagious disease in a decade, as a Texas outbreak has grown from a handful of cases to more than 130 across two states.

Measles cases are popping up around the country and causing concern. So far, there’s one confirmed death. According to the Texas Department of Health — where the child died — 124 cases of measles have been confirmed this year alone.