As court debates vaccine-autism link, groups are challenged in getting out accurate information

When the parents of 12-year-old Michelle Cedillo appeared in federal court this month, they asked for a precedent-setting decision that could alter much about the way America perceives routine vaccinations for their children. Cedillo suffers from severe autism, which her parents asked the court to find was caused by common childhood vaccines.

A decision in favor of Cedillo's parents could open the door for thousands of autistic children to ...