Fewer kids are getting exemptions for vaccinations, and infant vaccination rates are high across the nation, according to new CDC data that detail the state of youth vaccinations in the US.

Nationally, kids getting an exemption to a vaccine were low, with an average level of 1.7 percent of all children.

“However, state exemption levels ranged from a low of less than 0.1 percent in Mississippi to a high of 6.5% in Idaho,” CDC said.

States generally allow an exemption for medical, personal or religious reasons, but some have struck down certain exemptions in the wake of the outbreak. California, where the measles outbreak originated, passed a law earlier this year that repeals religious or personal exemptions to vaccinations.