Link between virus and chronic fatigue syndrome gets even weaker

At first, it looked like a breakthrough in the fight against chronic fatigue syndrome. Researchers said they found a mouse retrovirus called XMRV in the 68% of blood samples collected from 101 patients with chronic fatigue syndrome, while only 4% of blood samples from 218 healthy controls had evidence of the same virus. The research team said it was strong evidence that XMRV had something to do