Some who received little to no vaccination in childhood sought out the shots themselves in adulthood — and risked family relationships.

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.

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