More California Students Skip Vaccinations, State Data Show

Vaccine exemptions that allow children to enroll in public and private schools without state-mandated vaccines have more than doubled, according to a Los Angeles Times analysis of state data. The increase in unvaccinated children appears to be related to fears among more affluent parents that shots could trigger autism, a concern widely discredited in medical research.

• "California Schools' Risks Rise as Vaccinations Drop" (Lin/Poindexter, Los Angeles Times, 3/29).