@Sandy - No, not a mistake. Where they made the mistake was not promoting the benefits and advantages of the MMR vaccine sufficiently.
Wakefield is a self-serving moneygrabber. His research work was fatally flawed, both in design and execution.
He failed to get ethical consent for his trial.
The size of the trial was just 11 children, all of whom were referred to him via a lawyer seeking to bring a class action in the US.
He was paid approximately $500,000 by the same legal firm.
His co-authors all retracted their names from his paper as critical review exposed the flaws.
The Lancet retrospectively pulled the paper, following review and further allegations of ethical misconduct.
Wakefield himself faced a GMC panel and was struck off the medical register.
Wakefield had a financial incentive in encouraging the use of single vaccines; He had patented the formulation of a measles vaccination ( or mumps, I forget which exactly now.
In sum, he made exaggerated and alarming claims about a link between the MMR vaccine and the neurological impairment of children ( autism), based upon a badly flawed case study, without obtaining consent from the Ethics Committee and the Royal Free.
The media at the time leapt upon this, and many well-meaning folks, already uneasy at being complicit in giving their kids a jab which they found painful, took fright at the thought that they may inadvertently be poisoning their children. The lead to a collapse in the numbers of kids being vaccinated. This collapse would not have been mitigated even had the single vaccines been more widely available.
And yes, i think Tony and Cherie Blairs refusal to disclose what they had done about vaccination - Leo, was it? - and the medias focus upon that, fed upon parent insecurity still further.
And this is what we are left with. Pockets around the country where the immunization rate amongst the vulnerable has fallen well below the required level of 95% to confer the protection of herd immunity, and wildfire outbreaks of diseases like this, which can spread like wildfire.
If you are interested in the chronology and the extend of the fraud perpetrated by Wakefield, you might want to read the various articles by Brian Deer, and investigative journalist from The Sunday Times, whose detailed investigation revealed the extent of Wakefields culpability in this public health scare...
http://briandeer.com/mmr-lancet.htm