The U.S. Centers for Disease Control and Prevention on Friday reported that measles cases so far this year had jumped to 93 from 14 a week ago, mainly driven by an outbreak in Texas. The Texas Department of State Health Services said last week that more cases of the highly contagious disease were likely to surface due to an outbreak in Gaines County.

The ongoing Texas measles outbreak has rapidly grown to the largest the state has seen in decades, spreading through mostly unvaccinated residents and creeping across both county and state lines. On Friday morning,

A measles outbreak in Texas has grown to 90 cases, mostly among unvaccinated children, state health data published Friday shows.