(CNN) — Scientific information on the US Centers for Disease Control and Prevention’s website was replaced Wednesday with anti-vaccine talking points that don’t rule out a link between vaccines and autism, despite an abundance of evidence that there’s no connection.

Bullet points on the top of the page now state that “vaccines do not cause autism is not an evidence-based claim” because studies have not ruled out the possibility that infant vaccines cause autism.

The language is a common tactic used to cast doubt on the safety of vaccines, said Alison Singer, president and co-founder of the Autism Science Foundation.

“You can’t do a scientific study to show that something does not cause something else,” she said Thursday.

“All we can do in the scientific community is point to the prepo

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