Just three years ago, Michigan had the fourth-highest rate of unvaccinated kindergartners in the nation. But when a charter school in northwestern Traverse City reported nearly two dozen cases of whooping cough and several cases of measles that November, state officials were jolted to action.
Without much fanfare — or time for opponents to respond — they abandoned the state's relatively loose rules for getting an exemption and issued a regulation requiring families to consult personally with local public health departments before obtaining an immunization waiver.