I've long wondered if infections are behind many of the unexplained mid and late life disorders. It's exciting to see that it's finally being recognized as a credible explanation in the literature. As someone with a family member suffering from autoimmune, I'm hopeful that this trend will continue and result in antigen mediation therapies that can help.
Worth mentioning that the family member I am thinking of developed these symptoms within a year after getting a bad stomach/GI infection.