An NIH study published in the journal mBio found no association between XMRV and chronic fatigue syndrome. There were no signs of infection in blood samples from 293 people, including patients with CFS and healthy participants. A separate study published in the journal PLoS One found no link between the virus and prostate cancer. A donor-deferral policy for people with CFS may be reconsidered, said Susan L. Stramer, the American Red Cross' executive scientific officer.
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