Twitter banned American author Naomi Wolf from the microblogging platform over posts deemed to be spreading vaccine misinformation.
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The writer, who made her name with feminist polemic The Beauty Myth in the early 1990s, is an outspoken liberal, notably having served as an adviser on Bill Clinton's presidential campaign in 1996.
One of the more eccentric recent claims on her Twitter feed said that vaccines amounted to a "software platform that can receive uploads." She also compared Dr. Anthony Fauci, Washington's top pandemic adviser, to Satan.
Her last tweet made the extraordinary claim that "It seems urgent for public health to separate vaccinated people's urine/feces from general sewage supplies/waterways till studies are done of how MRNA in sewage and drinking water will affect us all."
Facebook, Twitter and YouTube have recently pursued a purge of accounts supporting conspiracy theories.