Jenny McCarthy has an autistic son, and is against childhood vaccines because she thinks the shots and her son's impairment are related. Amanda Peet is the spokesperson for Every Child By Two, which wants all kids vaccinated by age two. Peet called anti-vaccine parents like McCarthy "parasites." McCarthy responded, saying, "I am so proud to be a 'parasite.'" Peet backtracked on the use of the word "parasite," but the damage was done.

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