The number of people with measles in Texas increased to 146 in an outbreak that led this week to the death of an unvaccinated school-aged child, health officials said Friday. The number of cases — Texas’ largest in nearly 30 years — increased by 22 since Tuesday.

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.

Texas is experiencing its largest measles outbreak in 30 years, primarily affecting the South Plains region. A child has died and several people have been hospitalized by the extremely contagious disease that was once considered eradicated,