Retrovirology Journal Publishes Four Studies on XMRV and Contamination Retrovirology today published four studies that focus on the contamination issue with XMRV. None of them are definitive, and none of them demonstrate that contamination resulted in the findings of the original paper, but they do indicate how careful researchers have to be when they explore this particular line of viruses..
Check out overviews of the papers here and a long discussion here