Texas officials on Wednesday announced the first measles death in the state's ongoing outbreak of the highly contagious disease. A Gaines County resident died in Lubbock, Zach Holbrooks, public health director and executive director of the South Plains Public Health District, said in an email. The person's age is unclear.

State medical experts have confirmed 124 cases of measles in Texas. This is the largest measles outbreak in Texas in 30 years. Here is how it started and an overview of the situation, as of Feb. 25.