The science behind XMRV is not yet clear. As patients, we should not be 'choosing winners', but merely pointing out the underlying facts - that CFS is far more common than the average person realises and has long been ignored by the government. It has the lowest ratio between research spending and societal impact on quality of life and economic costs, but despite this many abnormal biological findings have been found suggesting this is a biomedical disease that warrants a serious response. Excessive emphasis on XMRV can be dangerous as it makes it seem like the answer is found and researchers need not bother looking at other novel hypotheses. It will also make us look like 'the boy who cried wolf' if this hypothesis turns out to be false.