CADILLAC â Munson Healthcare has lowered the age of people eligible for vaccines through their clinics just days after they'd announced 86-year-olds could register for the vaccine. As of Tuesday, the age you have to be to register for a Munson COVID-19 vaccine clinic is now 82. Additionally, if you live with an 82-year-old and are 65 or older, you might also be eligible. Munson is only serving people who live in their service area; that service area covers all four counties in the Cadillac News service area. On Saturday, Munson held a drive-through vaccine clinic at the hospital. Other Munson communities also had drive-through clinics recently.