The first person reported to have died from measles in the U.S. in a decade, a "school-aged child" who perished overnight in a children's hospital in West Texas, was announced by health officials on Wednesday,

A school-age child has died of measles in West Texas, the first death from the disease in the U.S. since 2015 according to the CDC.

The outbreak is primarily affecting West Texas, but officials in San Antonio, New Braunfels and San Marcos are monitoring cases after an infected person recently visited the area, according to the Texas Department of State Health Services.