“Scientologists are nuts, IMO, but they don’t have anything against vaccinations. “
they are against modern medicine in general and Bachmann made a psychiatric claim, that it causes mental retardation.
Surprise! Brain infections have psychiatric side effects!
Again I say, I think you are confusing Scientologists (the church founded by L. Ron Hubbard) with the Christian Science Church founded by Mary Baker Eddy.
The claim/anecdote that Bachmann repeated was of a side effect to a vaccine. AFAIK, Scientologists are no more and no less infested with those who believe thimeresol or other aspect of vaccination practice causes autism, than is any other group of people.
Scientologists are NOT against modern medicine in general, and are generally eager to obtain medical care that will extend their lives.
OTOH, Christian Science bylaws state opposition to vaccination, and members will refuse treatment for many illnesses.