This evening I was doing some research to try to identify which bacteria has colonized my cells. I contracted XMRV, then mononucleosis, recovered from mono and have a low count for XMRV. On the BALI protocol I tested positive for having NF-kB and cIAP1, cIAP2 (table 1, Faherty C. Staying Alive. March 2008) immunological pathway impairment. According to Faherty the only bacteria known to both colonize monocytes and block these pathways is....bartonella sp. (similar to the one that causes cat scratch disease). Meow! This makes perfect sense. I've had numerous scratches and even a few bites previous, remember getting a papule, have generalized lymphadenopathy and the symptoms match mine: The same source also confirms that Bartonella is a good stealth bacteria: (Breitschwerdt, EB. Bartonella sp. Bacteremia in Patients with Neurological and Neurocognitive Dysfunction. JOURNAL OF CLINICAL MICROBIOLOGY, Sept. 2008, p. 2856–2861) I've asked my doctor to order a PCR blood test for Bartonella. I'll let you know what it finds! Does anyone else have exposure to cat scratches and bites that preceeded your CFS?