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Another XMRV study retracted

Posted on behalf of Heidi Ledford. Five days after Science withdrew a controversial study linking chronic fatigue syndrome (CFS) to a virus, another research paper on the topic has been retracted. This study, retracted by the Proceedings of the National Academy of Science on 27 December, was widely seen as supportive of the proposed link between a virus and CFS, so its retraction is another blow to those who back that connection. It had found that people with chronic fatigue syndrome were more likely than healthy controls to harbour MLV-like viruses in their blood. (MLV stands for murine leukaemia virus; and the 


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