Texas officials on Wednesday announced the first measles death in the state's ongoing outbreak of the highly contagious disease. The death, of a school-age child, is the first measles death in the U.S. since 2015, according to the Centers for Disease Control and Prevention.

A growing measles outbreak in Texas, where one unvaccinated child died and nearly 20 others have been hospitalized with serious complications, marks the first major test for U.S. Health Secretary Robert F.