Yes indeed. It is the new frontier in medicine.Exactly!
Here they have found connection to type 2 Deabetis mellitus , obesity some inflammatory gut disease etc ect. We are 1/10 humans and 9/10 microbes by shire numbers, and if you take in consideration the symbiogeninc theory we are 100% mycrobs colony! The Almighty sure have used some strange ways.....
https://en.m.wikipedia.org/wiki/Symbiogenesis
They are finding a link between gingivitis bacteria and Alzheimer's. (Was it you that posted the link here?)