A growing number of parents in the Lone Star State are choosing not to vaccinate their children despite warnings from doctors.

Texas is one of 18-states in the U.S that allows non-medical exemptions to vaccines required for school attendance.

Students must be vaccinated for measles and meningitis before they are allowed to enroll.

More than 40,000 students have used "conscientious exemptions" from immunizations this year alone according to state health records.