[EtienneK]

Yes, my thought exactly. Seems to be a recurring theme, especially with autoimmune diseases.

Is there some central source to follow on developments on all the research surrounding this?

[ra]

She's not an immunologist, but I really like Dr Rhonda Patrick's podcast about the bleeding edge of medical research. She covers microfauna often. https://www.foundmyfitness.com/episodes

[lambdaba]

I think you meant "flora", relevant xkcd: https://xkcd.com/1471/ :)