A new analysis by the WHO Global Expert Panel on Vaccine Safety confirms that there is no causal link between vaccines and autism spectrum disorders (ASD).[1][2] The commission evaluated two new systematic reviews of research published from 2010 to mid-2025.[1] Although several studies have suggested a possible association, they have had serious methodological flaws and provided low-quality evidence that fails to support causation.[1] Many such studies came from a single research group with a high risk of bias.[1] A second review examined aluminum-adjuvanted vaccines and found no evidence of long-term health risks, including neurodevelopmental disorders.[1] Ecological analyzes have reported correlations between aluminum exposure and the prevalence of ASD, but are not suitable for determining causation and were at critical risk of bias.[1] The Commission confirms the conclusions of 2002, 2004 and 2012 about the safety of vaccines with thiomersal or aluminum without an increased risk of autism.[1] Decades of research from several countries support the safety of childhood and prenatal vaccines.[1]