Kennedy has said his agency will explore possible causes of autism and plans to release findings by September. The CDC estimates that 1 in 31 8-year-olds nationwide had autism in 2022. Scientists say the rise may owe to several factors, including better diagnosis, older parents and genetics, The Wall Street Journal said.

Dr. Robert Malone appeared on a 2021 episode of The Joe Rogan Experience and caused a stir amongst healthcare professionals.