Kevin Drum observes that yet another study has put to rest the theory that Thimerosal, a preservative that used to be put in some childhood vaccines, causes autism:
However, despite the equivocal (at best) scientific evidence linking
thimerosal to autism, conspiracy theories abounded and the issue deeply
split the autism community. Firm evidence in one direction or the
other, though, had to wait until now. Thimerosal was ordered removed
from most childhood vaccines in 1999, and by the early 2000s children
had stopped receiving virtually all thimerosal-based vaccines. If
autism rates then decreased, it would be good evidence that thimerosal
really had been to blame.
But that didn't happen. Interim studies have shown no decrease in
autism rates, and a study released today puts the nail in the coffin of
the thimerosal story. It tracks children born in California and
includes enough years of data to show pretty definitively that autism
diagnoses continued to rise even after thimerosal was removed
I thought it was time to move on from this theory years ago, but Drum says that it continues to be carried forward by parents desperate to find an explanation for their child's autism. I guess I am a bit more cynical, for I would argue that this bad science of Thimerosal has been carried forward, just like the bad science of breast implant caused immune deficiencies, by trial lawyers desperate for another easy extortion target. And, just as medical studies did not stop lawyers from pressing forward implant lawsuits, I am sure the Thimerosal lawsuits are not going to go away either.