by Jon Cohen on 6 May 2011, sciencemag.org:
The XMRV saga is far from over. Unlike Coffin and many other skeptics, Singh contends that a virus similar to XMRV does infect humans, and her own work supports the prostate cancer connection. "There is still considerable data supporting the link to prostate cancer that cannot be easily explained by contamination," she says. "More work needs to be done before that question can be settled."
The debate about whether XMRV infects humans and is linked to disease promises to come to a head later this year, when two different studies sponsored by the U.S. National Institutes of Health are completed. The studies both involve Mikovits and several other independent labs testing the same samples. Mikovits says if all the samples in these studies test negative, including in her own lab, the day could come when she changes her mind. "But I don't expect to get to that day," she says.