Childhood vaccines became a hotly-contested topic of debate when a small, but vocal, group of parents sounded the alarm that vaccine exposure could cause higher rates of autism. It’s an assertion that was championed by a lone U.K. researcher, Andrew Wakefield, whose licence to practice medicine has since been revoked and whose research has been found to be fraudulent by a leading British medical organization.

Largely obscured by this emotional debate is a second assertion that standard childhood vaccines are largely responsible for many cases of childhood diabetes. The argument over this debate takes much the same form as the autism-vaccine argument, with a single researcher sounding the alarm, a small group of parents stridently backing that researcher, and a large body of scientific evidence that seems to disprove any connection between childhood vaccines and diabetes.