Texas' measles outbreak that began in Gaines County in January has now expanded to 709 cases, officials said on May 9.

The new cases in an unvaccinated adult and child come amid a statewide outbreak that has sickened almost 700 people since January, according to the Texas Department of State Health Services.

The U.S. surpassed 1,000 measles cases Friday, even as Texas posted one of its lowest counts of newly confirmed cases since its large outbreak began three months ago. Texas still accounts for the vast majority of cases in the U.