Of those infected across the U.S., 97% of cases came from those who are unvaccinated or whose vaccination status is unknown.

Austin-Travis County reports a second measles case involving a vaccinated adult. Officials, including Mayor Watson and Dr. Walkes, will provide updates on the outbreak and responses.

The measles outbreak that began in West Texas now totals 725 cases across three states. Less than 10 cases in Texas are considered actively infectious.