Heather Simpson had a following online due to her anti-vaccine beliefs. Now, she worries the anti-vaccine misinformation she promoted hurt other children. She explains her change of heart to CNN Business’ Donie O’Sullivan.

Heather Simpson had a following online due to her anti-vaccine beliefs. Now, she worries the anti-vaccine misinformation she promoted hurt other children. She explains her change of heart to CNN Business’ Donie O’Sullivan.


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