Meanings of caused autism in English

The story is based on actual claims by parents that a vaccine preservative, thimerosal, caused autism in their kids.

If thimerosal in vaccines really caused autism, you would expect rates of autism to fall once the preservative was removed from vaccines.

Kadar's parents argued that he had a brain tumour that caused autism and other mental problems, and that he should not be considered legally competent.

'It has definitely caused autism.