Since XMRV appears to be associated with prostate cancer, my guess is that what HHS/CDC are trying to do is *disassociate* it with CFS. That way they can go about taking seriously and treating XMRV prostate cancer, while continuing to ignore CFS for as long as necessary, in case it's not easily treated with anti-retrovirals (or for however long is politically expedient or necessary - i.e., probably forever). If they didn't do that, the public would still worry about a CFS link with XMRV. But if they squash that association, they can say, "oh don't worry - it doesn't cause CFS so 1) you don't have anything to worry about (if you're a woman), or else 2) you don't have prostate cancer yet, so don't worry - we will give you antiretrovirals." Then they're off the hook and don't have to worry if the anti-RV fails - at which point they just go ahead with their big money-making anti-cancer regimens anyway.