A growing trend of vaccine exemptions in the area, with nearly three percent of families opting out, is threatening herd immunity and raising public health concerns.

As Texas students settle into the new school year, state law says this is the time school districts should be ensuring every child is up to date on their vaccinations or has an approved exemption. But KPRC 2 finds it doesn’t appear the districts are enforcing immunization rules as intended.

Florida has a plan to drop school vaccine mandates.