Drek recently posted the latest in his long line of work on popular vs. scientific conceptions of vaccinations.
As it turns out, not only has nobody been able to replicate Wakefield’s original research, not only has changing the MMR schedule in various countries not produced changes in autism rates, not only did most of the authors on Wakefield’s article later retract their interpretation of the results, it now appears that all of our failures to confirm an MMR/autism link are attributable to one simple problem: Wakefield made his data up.
Fabio also posted about this at orgtheory.