In the precision dataset, there are the sentences that led to this, some are:

> "Even though the article was fraudulent and was retracted, 1 in 4 parents still believe vaccines can cause autism."

> On 28 February 1998 Horton published a controversial paper by Dr. Andrew Wakefield and 12 co-authors with the title "Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children" suggesting that vaccines could cause autism.

> He was opposed by vaccine critics, many of whom believe vaccines cause autism, a belief that has been rejected by major medical journals and professional societies.

All that I've seen don't actually say that vaccines cause autism