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.

The latest update comes two days after the first death was reported in a school-aged child who lived in the outbreak area.

While there are usually cases and even minor outbreaks reported yearly, the 2025 outbreak is on track to be the largest in six years.