The Texas Department of State Health Services on Tuesday gave more details about potential measles exposures in San Marcos and San Antonio, and added New Braunfels to the list of affected cities. It also said that the exposures in the three cities were by the same person.

Officials in Central Texas are warning the public about a possible spread of measles as they say a person who visited the area had tested positive for the disease. The Hays County Health Department claimed Sunday that the patient is an individual who was in San Marcos—about 30 miles southwest of Austin—and spent time at a local college and restaurant between 3 p.

Warnings have also gone out to residents of San Marcos and New Braunfels due to visits from an infected person.