The Texas health department reported 624 cases of measles in the state on Tuesday, an increase of 27 from April 18.

The measles outbreak centered in the South Plains region of Texas surpassed 600 cases on and spread to one new county on Tuesday, health officials said. The state has now seen 624 cases since the outbreak began in late January,

The number of cases reported in Texas’ historic measles outbreak has risen to 597, an increase of 36 cases since Friday, according to state officials on Friday. Of those, 62