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.

As Texas continues to battle a growing measles outbreak largely among its unvaccinated children, six other states have confirmed cases, as well.

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