I've read most of this thread.
I'm astonished at the hypocrisy of the op, who is guilty of the very selfishness she is so keen to accuse others of. Selfishness, a lack of empathy and an almost wilful failure to understand.
Some people, like King Prawn, have popped in and out to offer a bit of abuse or a snide comment. I doubt they've read any of the links posted by those far more knowledgeable, but have lurked to see where they can point score against parents who have seen their children suffer.
Too many have made sweeping statements based on little more than prejudice.
God, the disgusting and dismissive stuff Pag, Beach, Riven and Peachy have responded to with reason, research and detail.
After this thread has died the op will go back to her now immune, well daughter, and you will carry on living out the arguments with the difficulties your experiences bring.
I know I sound pompous but I don't care, there are such a bunch of selfish, nasty, unpleasant, stupid and wilfully ignorant people on this thread I'm amazed you keep coming back to it with the patience and grace you've shown.
Although I suppose Pag must have a few dents in her head from the number of times it's hit the desk.
Also Cote: most excellent stuff.