AI Chatbot Users More Likely to Believe Vaccine Myths

A tracking poll released on June 30, 2026, by KFF shows a link between frequent AI chatbot use and vaccine misinformation ^[1][2]. Individuals who use AI tools for health advice are more likely to endorse debunked claims, such as the idea that vaccines cause autism ^[1]. The findings highlight growing concerns regarding the accuracy of health information provided by automated systems ^[2].

The study also identified that people lacking a trusted healthcare provider are more susceptible to these myths ^[2][3]. Doctors remain a critical source for dispelling misinformation, yet many patients turn to digital platforms instead ^[3]. Frequent social media users showed similar patterns of endorsing false health claims ^[2].