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Tom Kertscher
By Tom Kertscher May 18, 2023

Study on possible COVID-19 brain effects looked at virus, not vaccines

If Your Time is short

  • A recent study by German researchers did not find that COVID-19 vaccines could cause long-term brain damage, its author told The Associated Press. 

  • The study examined the possible effects on the brain from the coronavirus itself.

  • The claim originated on a site known for spreading misinformation.

A TikTok video shared a since-deleted tweet claiming that "a European study has found COVID-19 vaccines could be causing ‘long-term brain damage.’" 

But the study examined the possible effects on the brain of COVID-19 infection — not effects of COVID-19 vaccines.

The video included a screenshot of a tweet from Leading Report, which describes itself as a source for breaking news. After reading aloud the tweet, the video’s narrator said, "We knew that." 

The tweet’s wording was very similar to a headline from The People’s Voice, a site known for spreading misinformation. 

The People’s Voice article, in turn, summarized an article by Natural News, which has spread misinformation about COVID-19 vaccines and was banned from Facebook in 2020.

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The Natural News article falsely reported on a study published in April by German researchers. The study, which has not been peer-reviewed, examined the coronavirus’s effect on human brains — not vaccines developed to fight the virus. The study found that the presence in the brain of the virus’ spike protein suggests that it "may contribute to long-term neurological symptoms."

One of the study’s co-authors, Dr. Ali Ertürk, told The Associated Press: "We have done zero experiments using vaccine, and we have shown and claim zero side effects of the vaccine."

Featured Fact-check

We rate the claim that "a European study has found COVID vaccines could be causing ‘long-term brain damage’" False. 

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Study on possible COVID-19 brain effects looked at virus, not vaccines

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