Anti-vaxers are using a 1969 clip from "The Brady Bunch" to push their cause. Maureen McCormick, who played Marcia Brady, isn't happy about it. https://t.co/LEJN52Ravf https://t.co/31Ia3Qmr3b

Anti-vaxers are using a 1969 clip from "The Brady Bunch" to push their cause. Maureen McCormick, who played Marcia Brady, isn't happy about it. https://t.co/LEJN52Ravf https://t.co/31Ia3Qmr3b (via Twitter http://twitter.com/CNN/status/1123226881967443968)