Experts say the rhetoric appears to ignore and undermine decades of science into the genetic and environmental factors that can play a role in the disorder.

Donald Trump has urged Americans not to take paracetamol over claims it is linked to autism after hailing an “amazing” new drug that could be used to treat the condition.

They cited the lack of evidence supporting the White House's guidance — and the harms of untreated fevers during pregnancy.

President Donald Trump announced Monday that the US Food and Drug Administration will notify doctors that the use of Tylenol during pregnancy can be associated with a “very increased risk of autism,” ...