Liberal US states led by California on Tuesday said parents should continue to get their children immunized, contradicting what they said was "dangerous misinformation on vaccines and autism" issued by the federal government.

The West Coast Health Alliance said it was "deeply concerned" by the anti-science mood that has overtaken the Centers for Disease Control under the leadership of vaccine skeptic Health Secretary Robert Kennedy.

"Rigorous research of millions of people in multiple countries over decades provides high-quality evidence that vaccines are not linked to autism," said a statement from the alliance, which groups California, Oregon, Washington and Hawaii.

"Autism is a complex neurodevelopmental condition with multiple contributing genetic and environmental factors. Suggesti

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