I'm surprised that nobody has mentioned paracites/worms. Areas of the world where worm infection is prevalent and the areas of the world where allergies/autoim

I'm surprised that nobody has mentioned paracites/worms. Areas of the world where worm infection is prevalent and the areas of the world where allergies/autoimmune diseases are prevalent have almost no overlap. There is even evidence to suggest that infection by certain larvae can actually alleviate certain conditions (like inflammatory bowel disease) although this research is at a very early stage and carries risk (you certainly shouldn't try it as a DIY solution, for sure!).