A new survey links social media, chatbots and the spread of vaccine misinformation


Vaccines have become a controversial topic in public health, with some parents opting for them Not vaccinating their children Against some diseases due to the spread of misinformation. Among the most common myths is that Measles, mumps and rubella vaccine It causes autism in children and that Covid-19 vaccines have led to more deaths than the virus itself.

Many of these false claims are being spread online by anti-vaccine influencers.

The most recent tracking survey on health information and trust, conducted by Kaiser Family Foundationan independent source of health policy research, examined such claims.

The survey, published on Tuesday, looked at four widespread anti-vaccine myths: MMR vaccines cause autism in children; MMR vaccines are more dangerous than measles; More people have died from COVID-19 vaccines than from the virus itself; mRNA vaccines can change your DNA.

A representative for the Kaiser Family Foundation did not immediately respond to a request for comment.

The survey surveyed 2,480 US adults and found that those who use social media to get health information and advice at least weekly (26% of all adults) are more likely than those who never use social media to get health to say every false vaccine claim is “likely” or “definitely true.”

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The relationship between belief in vaccine myths and the use of social media or artificial intelligence to obtain health information.

KFF Tracking Survey on Health Information and Trust (May 7-31, 2026)

The results were similar when the survey looked at people who rely on AI chatbots for health advice. The results showed that 35% of adults who use AI chatbots at least weekly for health advice believe myths about the measles vaccine and mRNA, compared to 20% of non-chatbot users.

Atlas of Artificial Intelligence

Although only a small percentage of adults believe health myths spread by AI chatbots, this finding underscores broader concerns about trust in the U.S. health care system.

The survey found that those most likely not to fall for vaccine myths tend to have a trusted healthcare provider they trust. When asked whether more people died from COVID-19 vaccines than from the virus, 46% of adults without a trusted health care provider agreed that this was “likely” or “definitely true.” This is almost double the proportion of people with a trusted health care provider (24%) who disagree with these claims.

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Individuals with a trusted provider are less likely than those without a trusted provider to endorse myths about vaccines.

KFF Tracking Survey on Health Information and Trust (May 7-31, 2026)

These numbers also extend to parents who skipped or delayed vaccinating their children. Parents who were against vaccinating their children were 25% more likely to say vaccine myths were “definitely” or “probably true,” compared to parents who had vaccinated their children.

The survey also analyzed the data collectively and showed that there is an opportunity to restore confidence in vaccines among those who belong to the “resilient middle.” While some people are completely against vaccines and others are fully in favor of them, at least half of the adults surveyed were unsure. The survey suggests that this is the group that should be targeted to address vaccine hesitancy.

CNET previously reported that the spread Misinformation wellness connected It indicates a problem within our healthcare system. As access to primary care and diagnosis becomes more restricted and less expensive, many people are turning to social media or artificial intelligence for free answers they can’t get anywhere else.

Some people are drawn to information — even when it’s false — from health influencers who seem to have the answers, because they share professional-looking content. With gaps in access to healthcare and the increasing use of social media and AI-powered chatbots, misinformation about vaccines could spread more easily among vulnerable populations.



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