I came across this:

PCR Detection of Mycoplasma in Patients with Chronic Fatigue, Fibromyalgia, Rheumatoid Arthritis and Gulf War Syndrome - 1999

The present study suggests that mycoplasma infection may be the common link between these illnesses responsible in some degree for the similarities in symptoms experienced in each condition.

Presence of mycoplasma genus was found in 52% CFS; 54% FMS; 49% RA; and 55% GWS and only 15% of healthy controls. Further testing conducted for three mycoplasma strains proved positive in rheumatoid disease patients with overlapping symptoms. Strains tested were: M. fermentans, M. hominis, and M. Penetrans.

Here:

http://www.roadback.org/index.cfm/f...play_id/84.html

Wow, really interesting. Thanks for the info.