A recent study on Microbiome and Crohn’s Disease included some interesting graphics.
” we observed a strong effect on the microbial composition, and exposure to antibiotics generally amplified the dysbiosis.”
There was also a nice presentation of the shifts (NOTE: CD had excessive E.Coli, CFS has decreased E.Coli)
The above does not directly apply to CFS, but it is an excellent model of how studies on CFS dysfunctional microbiome should be studied. For shifts in bacteria due to antibiotics, it should be done on a family by family basis.