Very good posts LeBFG. And I, for one, am impressed by your PhD in population genetics (although I appreciate it wasn't with that intention that you mentioned it). But of course people who don't have much regard for science wouldn't have much regard for a scientific qualification. I did indeed get bored of the raving LeBGF but I just ignore the posters who are abusive and clearly quite bonkers, otherwise it's just a waste of time and energy.
Regarding the 'flawed' epidemiological studies. Any epidemiological study looking at vaccinations will be flawed. This does not mean that they are bad. It simply means that given that a randomized controlled trial cannot be conducted (for ethical reasons - since it is unethical to deprive a child of an effective vaccine), one has to use other techniques. Inevitably choices need to be made and not all the criteria for causality will be met in each study. What is crucial though is that all the studies have different designs and therefore different flaws. And they ALL come out with the same thing. Even where the studies are very highly powered (ie the chance that they will miss an effect which is there is tiny), nothing is found to associate vaccines with autism. Even if this sub-group arguement is true, the numbers would have to be tiny for the effect not to be detected.
It is also important to note that there is only speculative theory. Saintly, you have provided links showing the possibility of environmental triggers. I understood most research is focusing on prenatal environmental triggers - this cna include prenatal infection which is why the MMR is GOOD for reducing autism rates. However, nowhere have I seen in any of the links you've provided to scientific papers any of the authors jumping to the conclusions you have - that vaccines are responsible.
So you have zero epidemiological evidence (which you MUST have to prove causality) and a speculative theory which certainly isn't mainstream. Does it mean you're definitely wrong? No, but I think it's highly unlikely and even if it is proved right, then the numbers involved will be extremely small (I have crunched the numbers but given how highly powered the studies are, I'd guesstimate at least less than one in 100,000).
I do agree with you that I'd like to see better reporting of side effects - but for ALL medications. I'd also like to see better and more rigorous regulation of pharmaceutical companies - for ALL medications.
Regarding thimerosol, you may not have said it caused autism. Others have though. That is one of the reasons it was removed. Do I prefer single vial vaccines without preservatives? Yes, I do. Doesn't mean it was the right decision to remove thimerosol without ANY evidence it does any harm at all and plenty of evidence it's perfectly safe. And I will quite happily take my children for a flu vaccine this winter even though the vaccine contains thimerosol.
tabitha
i'm very glad you wouldn't ban vaccines. Did you see what happened in the former soviet union when diptheria vaccination rates fell? Yes, an epidemic of diptheria. Good thing most people DO immunize their children against diptheria and your children can free-ride on that.