Two of the four cases are in Lubbock, which hasn’t seen a case in more than 20 years. Meanwhile, measles vaccination rates in Texas have fallen over the last four years.

At least four cases of measles, including two involving school-aged children, have been reported in Texas in less than two weeks, putting state health agencies on alert.

For some communities, this is the first case of measles in more than 20 years.

Laura Anton, spokesperson for the Texas Department of State Health Services, said the agency sent out an alert to health providers statewide once measles were confirmed to be found in two adult residents in Harris County last week.

The alert stated that both individuals reside in the same household and were unvaccinated against measles. These were the first confirmed cases of measles reported in Texas since 2023, when two were reported.