New research indicates that the tests used to detect the retrovirus XMRV in patients with chronic fatigue syndrome (CFS) are unreliable (Simmons G et
al. Science. doi:10.1126/science.1213841 [published online ahead of print September 22, 2011]).
A 2009 article reported that most patients with CFS were infected with XMRV (Lombardi VC et al. Science. 2009;326585-589), but the finding could not be confirmed in later studies. Now researchers (including the authors of the original report) at 9 different laboratories have published results from separate blinded analyses of blood samples from 15 individuals previously reported to be infected with XMRV (14 with CFS) and 15 healthy controls.
Hampton T. Retrovirus and Chronic Fatigue. JAMA. 2011;306(17):1853. doi:10.1001/jama.2011.1576
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