Each month, Dr. Jon Hallberg joins MPR News host Cathy Wurzer to talk about topics that are important to your health and take a deep dive into medical news. Hallberg is a family medicine physician at Mill City Clinic and a professor at the University of Minnesota Medical School. In this installment of Vital Signs, he breaks down possible changes to COVID-19 isolation guidelines, measles cases in Minnesota, and the early reappearance of ticks in the state.