In 1998, he had done some researches and claimed that there were some links between vaccines like MMR and autism. And he advocated that don't let the children take the injection.
Lots of parents refused to let their children be vaccinated. They launched some demonstrations.
The mistrust of vaccines was spread widely
The terrible infectious diseases spread out because of many children didn’t take an injection. And some people suffered, even died because of that.
On the Internet, we can find lots of perspectives, but we have to think that whether it is true or not. We often easily believe the statements that we found on the Internet, but we have to know that any opinion may cause damage on our life.