Facebook has agreed to ban adverts with anti-vaccination content while Instagram says it will also introduce controls. Yet the misinformation bubbles away.
The emergency order against anyone under 18 who is not vaccinated is a bid to fight a measles outbreak that has infected more than 150 people since last autumn.
A person travelling from Phuket to Sydney,then on to Melbourne,and finally to Christchurch was diagnosed with the highly contagious disease.
Rockland County's outbreak has most heavily affected Orthodox Jewish communities,in which vaccination rates tend to be lower.
Taylor Winterstein says she is a"big believer that you do not need a qualification to know how to critically think for yourself".
There is always the risk that some may not recognise celebrity brand-building for what it is,and could take the advice literally.
The My Kitchen Rules host promoted a podcast endorsing the views of anti-vaccination campaigner Dr Sherri Tenpenny.
A massive 11-year study by Danish researchers has found no link between the MMR vaccine and autism,further discrediting claims by anti-vaccination groups.
One in three Queensland kids missed free vaccinations provided through state schools last year.
Most of those who died were children,according to the World Health Organisation.
The rise of"anti-vaxx"Facebook groups is overlapping with a resurgence of measles,a disease that was declared"eliminated"in the US in 2000.