State health officials are struggling to contain a measles outbreak that has sickened mostly Somali-American children. The vaccination rate is low in this tight community that's worried about autism.
California lets kindergartners start school as long as they've had the first dose of all required vaccines. But some schools aren't tracking whether such kids end up getting all the doses they need.
California allows parents to opt out of vaccination requirements. Amid Southern California's measles outbreak, many schools are struggling with how best to deal with students who aren't vaccinated.
Parents have strong opinions about vaccination, a poll of parents done by the University of Michigan finds. Most want day care centers to require that children are up to date on their shots.