U.S. health officials made broad changes to childhood vaccine recommendations, alarming pediatricians and other medical experts who say they will sow confusion and undermine children's health. (AP video by River Zhang/Mary Conlon/Shelby Lum) (AP produced by Javier Arciga). Subscribe: http://smarturl.it/AssociatedPress Read more: https://apnews.com​ This video may be available for archive licensing via https://newsroom.ap.org/home