How California made a ‘dramatic’ impact on kindergartners getting vaccinated
California is one of five states that do not offer personal, philosophical or religious exemptions from school vaccination requirements. The idea behind these controversial state laws — which have received opposition from anti-vaccination activists — is that requiring more children to get vaccinated, unless they have a medical reason not to, can help reduce the spread of disease. Yet does such strict legislation really lead to more children being up-to-date on their vaccine requirements? A new study suggests yes, at least in California.