The measles outbreak that started in the South Plains region of Texas surpassed 700 cases on Tuesday, according to health officials. The latest update from the Texas Department of State Health Services shows the state has seen 702 cases of measles since the outbreak began spreading in late January.

The measles outbreak that’s sickened hundreds and killed two young girls since January appears to be slowing in West Texas as the virus runs out of people to infect.

The Texas health department has reported 702 cases of measles in the state on Tuesday, an increase of 19 cases since May 2, as the U.S. battles one of its worst outbreaks of the childhood disease.