Although there are new federal vaccination laws surrounding child vaccination, there are still a large part of the community that are not vaccinated and are causing a public health threat to other.

According to a new study from the U.S. Centers for Disease Control and Prevention, only 1.7 percent of kindergartners’ parents requested exemptions in 2014 from the vaccination laws, according to Reuters.

“Pockets of children who miss vaccinations exist in our communities and they leave these communities vulnerable to outbreaks of vaccine-preventable diseases,” Dr. Anne Schuchat, director of the CDC’s National Center for Immunization and Respiratory Diseases, told reporters in a media briefing.

In ten states, including California, lawmakers are tightening up on school vaccination exemption rules following a huge measles outbreak in Disneyland in Anaheim. That outbreak alone affected over 100 people.

All states have the requirement for a certain set of vaccinations a child must have before they are enrolled in school, and every state allows for certain medical reasons. But Mississippi and West Virginia are the only states that do not allow exemptions based on religious reasons.

But thanks to the high rate of children overall in the U.S. that are vaccinated against measles, they were not as severely affected as Canada from the recent outbreak.

“We were lucky in the U.S. We didn’t see large outbreaks in schools,” she said, adding that in one province in Canada, there were more than 100 measles cases from the Disney exposure “because of a big pocket of undervaccinated people.”

According to a recent report, Mississippi came in at the lowest rate of vaccine exemptions with a median of 0.1 percent. And at the top of the list, Idaho reported 6.5 percent.

But health experts are positive about moving forward. Reports show that states are increasingly providing more vaccination coverage information for residents across all media.