A proposal to make it harder to send kids to school without their vaccines cleared its first hurdle Thursday in a Colorado House committee.
The proposal has powerful bipartisan backers, but it sparked intense opposition from some.
Colorado is one of 18 states that allow parents and students to opt out of getting required vaccines if they submit a statement of exemption based on religious or personal beliefs.
The bill would require parents of students seeking a personal exemption to watch a video that discusses the benefits and risks of immunization to the student. Religious and medical exemptions would not be affected.
A House committee approved the bill 9-2 after hours of emotional testimony.
(Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)