I've just been cured from another sickness caused by the same bacteria. Only one or two years of suffering, not so much, but enough to make my life miserable in so many ways.

The explanation I've read at Wikipedia is that it's an extremophile (digestive acids), so it could never be cultured until very recently.

I completely agree with you about lack of perspective in medical knowledge. Pros get all defensive instead of doing a bit of self-criticism. Fortunately the scientific method seems to be stronger that individuals' biases.