State health officials from California, Oregon, Hawaii, and Washington have responded to recent changes made to the Centers for Disease Control and Prevention’s (CDC) “Autism and Vaccines” webpage. In a joint statement, the West Coast Health Alliance reaffirmed its position that vaccines are not linked to autism.
The Alliance cited extensive research involving millions of people across multiple countries over several decades as providing strong evidence against any connection between vaccines and autism. The officials expressed concern about what they described as inaccurate claims recently posted on the CDC website.
“Autism is a complex neurodevelopmental condition with multiple contributing genetic and environmental factors. Suggesting it stems from any single cause, such as vaccination, misleads families who deserve accurate guidance. It is not only a disservice to families seeking clarity about vaccines but also potentially harmful to autistic individuals and their families,” the statement read.
The Alliance emphasized that vaccines undergo thorough testing and are essential for preventing infectious diseases. They stressed that public health recommendations should be based on credible scientific evidence to assist parents and caregivers who may encounter conflicting or incorrect information regarding immunization.
“Vaccines are thoroughly tested and remain one of the most important tools for preventing infectious diseases. Public health guidance on immunization must be grounded in credible, evidence-based science to help parents and caregivers who may be receiving conflicting or inaccurate messages about immunization,” according to the Alliance.
Families were encouraged by the group to consult trusted healthcare providers and reputable organizations such as the American Academy of Pediatrics when seeking information about vaccines.



