Earlier quoted context omitted.
I listed an example about the rotavirus in my subsequent comments, but here's another one mentioned by Patrick_devine in the comments: http://www.cbc.ca/news/canada/british-columbia/story/2012/09... This illustrates that the precautionary principle[1] might sometimes be forgotten or be put on the background. [1] http://en.wikipedia.org/wiki/Precautionary_principle
That's a random fact, but not evidence in support of your thesis, which is that the currently accepted set of vaccines should be evaluated for their costs and benefits by individuals. The evidence that individuals are better equipped and are less biased than the current scientific establishment to evaluate the costs and benefits of a particular vaccine is the evidence I'm looking for. The evidence that vaccine X was…
As for your second paragraph, the scientific establishment can be very wrong. Example: 20 years ago the scientific establishment rejected the idea of exoplanets. Today, there are hundreds catalogued. Although I had no facts to support my view, the consensus felt just wrong to me. I just think there might other be cases where the scientific consensus just feels wrong, a good reason to keep a critical mind!