At least 124 cases of measles have been identified in Texas since late January, mostly among children and teenagers who are either unvaccinated or whose vaccination status is unknown, officials say.

A measles outbreak in West Texas has topped 120 cases and resulted in the first U.S. death from the illness in a decade.

A child who wasn't vaccinated died in a measles outbreak in rural West Texas, state officials said Wednesday, the first U.S. death from the highly contagious respiratory disease since 2015. The school-aged child had been hospitalized and died Tuesday night amid the widespread outbreak,