Texas reported 90 cases this week, while New Mexico reported nine. A majority of the cases have been in a Texas county where vaccination rates have lagged behind the rest of the state.

In Texas, at least 90 cases of measles have been reported in recent weeks across the northwest part of that state.

With a measles outbreak growing in West Texas, and cases popping up across the country, experts say vaccination is your best protection. And it's not just for kids. Some adults may need a booster.