Robert F. Kennedy Jr., the Health and Human Services secretary, has spoken several times in April about plans to find the origins of autism.

Health Secretary Robert F. Kennedy, Jr. has pledged to conduct transparent and quick studies to determine the cause of Autism Spectrum Disorder (ASD), with preliminary findings expected in six

Public health experts say the anti-vaccine views fronted by the HHS secretary are wrong and undermine trust in science. But a recent three-day gathering shows his followers still believe in him.