World maps showing inverse correlation between autoimmune disease and helminth infection

You wouldn't exactly consider this concrete proof of cause and effect but these global "heat" maps show a startling inverse correlation between autoimmune disease and helminth infestation incidence.
In other words, where infection with helminths is common (developing world), autoimmune diseases are very uncommon - and vice versa.
Take a look at the map.
You can actually get a 'helminthic probiotic supplement' in the UK now. It was developed at a major university and then the researchers spun-off a company to distribute the product. I forget the details but a friend of mine did purchase a few pots and gave them a go so I'll get in touch with him and ask for details and how it worked out for him.
All of this certainly adds weight to the hygiene hypothesis, or an updated version. I hope to try helminthic therapy myself shortly and the supplement seems by far the easiest first step on this road. I'll let you know if I try it also.