I thought Suzanne Vernon's piece on Precipitating Pathogens was very interesting. http://www.facebook.com/notes/the-c...-jan2010-precipitating-pathogens/271444420538 27% of people who had SARS resulted in CFS. persistent West Nile Virus infection 10% of people with mono, Ross River Virus, and Q Fever resulted in CFS. I hope the new findings on SARS and WNV will be helpful. SARS made headlines for a long time. These are scary infectious diseases that people pay attention to. Wessely, try to tell the SARS folks about their abnormal illness beliefs, and CBT will rid them of WNV. The other thing I note is that with the high percentage, 27% of post-SARS getting CFS, and even the lower 10% of post-EBV/RRV/CB getting CFS, it's unlikely that XMRV is the only possible cause of CFS with XMRV being ~3.7% in a healthy U.S. population, unless people with XMRV disproportionately get these other infections.