MPs have heard that the suggested link between autism and immunisations has been discredited - though many parents are unaware that's the case.
The Health Select Committee is holding an inquiry into improving completion rates of childhood immunisation.
Victoria University health researcher Hilary Stace says the notion that the Measles-Mumps-Rubella (MMR) vaccine caused autism was suggested by Dr Andrew Wakefield in the medical journal The Lancet.
But she told the committee Britain's General Medical Council found his work unethical and unscientific, and the article has since been retracted.
Hilary Stace says a campaign needs to be launched to improve immunisation rates and to rebuild trust in the MMR vaccine.
