The website Babyjabs offering parents advice on vaccines has been ordered to remove information about the MMR jab after claiming it could be linked to autism.
The site affirmed that the vaccine "could be causing autism in up to 10% of autistic children in the UK". It also said: "Most experts now agree that the large rise (in autism) has been caused partly by increased diagnosis, but also by a real increase in the number of children with autism."
One person complained that the claim was misleading and the Advertising Standards Authority (ASA) ruled it must be deleted and not appear again.
Another claim said the vaccine-strain measles virus had been found in the gut and brain of some autistic children, which supports many parents' belief that the MMR vaccine caused autism in their children.
Defending the claims, the site referred to a study from 2002 which concluded it could not be ruled out that there were some children who had an increased risk of autism if they were vaccinated.
Besides, Babyjabs medical director Dr Richard Halvorsen explained that MMR is not the cause of the majority of autism, but it is causing the disease in a small number of children.
Despite the defense, the ASA noted that the website made clear that there is a link between the MMR vaccine and autism, but the relation was "strongly rejected" by government and the medical establishment.