In Texas, there were 146 cases of measles across the state and the South Plains, with 20 patients hospitalized. The best way to prevent getting sick is to get two doses of a measles vaccine.

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.