Examples of content that won't be allowed on YouTube include claims that the flu vaccine causes infertility and that the MMR shot, which protects against measles, mumps, and rubella, can cause autism, according to YouTube's policies.
The online video company owned by Alphabet Inc is also banning channels associated with several prominent anti-vaccine activists including Robert F. Kennedy Jr. and Joseph Mercola, a YouTube spokesperson said.
A press email for Mercola's website said in a statement: "We are united across the world, we will not live in fear, we will stand together and restore our freedoms."
Kennedysaid in a statement: "There is no instance in history when censorship and secrecy has advanced either democracy or public health.”
The moves come as YouTube and other tech giants like Facebook Inc. and Twitter Inc. have been criticized for not doing enough to stop the spread of false health information on their sites.
But even as YouTube takes a tougher stance on misinformation, it faces backlash around the world. On Tuesday, Russian state-backed broadcaster RT's German-language channels were deleted from YouTube, as the company said the channels had breached its COVID-19 misinformation policy.
Russia on Wednesday called the move "unprecedented information aggression," and threatened to block YouTube.
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