Vaccine hesitancy has been growing in the U.S. in recent years. But as Texas measles cases rise and other states also report outbreaks, some parents want their kids to get their shots early.

It's the first measles death in the U.S. since 2015. More than 130 people in west Texas and New Mexico have been sickened in the outbreak so far.

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.

With anti-vaccine activist Robert F. Kennedy Jr. in charge of the nation's biggest health agency, it wouldn't take much tampering to enable vaccine-preventable diseases to make a comeback.

That's the adjective used by the director of the U.S. Centers for Disease Control and Prevention's Global Immunization Division. Can the world bring this outbreak under control?

The first vaccine required for school was for smallpox, over 200 years ago. And for decades, all states have required that kids be vaccinated against contagious diseases like polio to attend school.