Their parents never got them vaccinated. As young adults, they faced a choice.

At 30 years old, Lacie Madison just assumed she was fully vaccinated her entire life. But when she got a job at a hospital and was required to check her immunity, the doctor called with shocking news: It appeared she was barely vaccinated as a child, if at all. “I just said, ‘Are you kidding me?’” recalled Madison, now 39.Subscribe to The Post Most newsletter for the most important and interesting stories from The Washington Post. Madison, who was mostly home-schooled as a child in Montana, is p