Frequent AI chatbot users more likely to believe anti-vaccine myths, poll finds

A man gets his Covid and flu vaccine shot at Boston city hall on 7 January 2026. A man gets his Covid and flu vaccine shot at Boston city hall on 7 January 2026. Adults in the US who frequently seek out health advice from artificial intelligence chatbots are more likely to believe myths about vaccines, according to a poll released on Tuesday by health research firm KFF. The survey, which was conducted in May and polled a representative sample of 2,480 US adults, found that use of AI tools and chatbots correlated with belief in falsehoods such as vaccines causing autism or that the measles vaccine poses more danger than the corresponding virus. The connection remained while controlling for factors such as age, race, education and political partisanship.