Retracted: The Hepatitis B Vaccine, Autism Claims, and the Challenges of Causation

In this episode, we examine the recent retraction of a 2010 study that suggested a link between neonatal hepatitis B vaccination and autism in boys. We break down the methodological flaws that led to its withdrawal, explore related research from the same authors and others, and dive into why establishing causal links between vaccines and autism remains extraordinarily complex. Autism is multifactorial—shaped by genetics, environment, and timing—and we discuss the broader scientific consensus while highlighting the importance of rigorous evidence in public health debates.