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.

A Texas child died of measles amid a growing outbreak of the infectious virus, the first reported US death from the disease in a decade.

The unvaccinated school-age child is the first confirmed fatality in Texas’s worst measles outbreak in three decades.