In the midst of a measles outbreak, President Barack Obama is telling parents to get their kids vaccinated.

More than 100 cases of the measles have been reported in the U.S. since last month. Many cases have been traced directly or indirectly to Disneyland in California.

Obama said children who are not vaccinated are putting infants and other people who can't get vaccinations at risk.

"You should get your kids vaccinated," Obama said directly, in an interview with NBC on Sunday. The interview is airing Monday, but the network released excerpts in advance.

Obama says measles outbreaks are preventable. He says he understands that some families are concerned about vaccinations, but the science on them is "pretty indisputable."

Disneyland

This Jan. 22, 2015, file photo shows Mickey Mouse performing during a parade at Disneyland in Anaheim, Calif. Several states have reported measles cases that originated at Disneyland. (Jae C. Hong/The Associated Press)