Why is Michigan loosening its rules for parents wanting to exempt kids from vaccines?

During a measles outbreak this spring in Washtenaw County, Michigan, local health officials worked to contain cases by ramping up contact tracing and testing efforts. People could take a measles test outside the Washtenaw County Health Department offices in Ypsilanti.

A decade ago, Michigan had high rates of parents not vaccinating their children, so it required them to attend an in-person education class to get an exemption. It worked — until things got ugly.

(Image credit: Kate Wells)