Excellent question Bullybeef.
CDC in it's history has classed CFS as an 'Emerging Class 1 infectious disease'.
The World Health Organisation classifies ME, as a neurological disease. (ICD 10 - G93.3).
Even if none of the above had happened, there are numerous studies showing the disablity levels in ME & CFS equal: COPD, Asthma, AIDS, Heart Failure, MS. (Importantly mental illness does not cause these levels of disability). Neither ME or CFS, has ever been categorized as a mental illness.
So thankfully for patients with the label 'CFS' and 'ME' health agencies have told them they have diseases and illness and they are not healthy. Which would be expected if infected with an exogenous infectious retrovirus, XMRV (An MULV).
I am interested that you say XMRV is '
not causing disease'.
As no study has ever taken place and no data exists on people infected with XMRV to measure levels of health or disablity compared to controls without XMRV, one cannot plant any validity on the above statement quoted. One can assume this is the case, however, if one watches the 1st International Conference on XMRV broadcast from the NIH. If one is not aware that positive data exists, I too would assume this. That is fully understandable, especially if the chair of the conference (John Stoye) from the UK MRC pulls Dr Mikovits's microphone away when she is trying to answer a question on possible disease mechanisms of XMRV and suddenly called an end to the conference, 1 hr prematurely with no explanation.
http://www.youtube.com/watch?v=VBHZGPIRzOU
(See 6 mins 12 seconds elapsed onwards).
There is some data on XMRV in people with chronic neuro immune disease running at percentages of 80% (Cheney) and 98.8% (WPI) via culture detection method in people with the labels ME and CFS. Healthy people have been detected at levels far lower at 4-7% using the same methods.
This is considerable evidence of XMRV causing disease, and there needs to be more data collected. Naturally much more research needs to be done in people who have 'well pedigreed' CFS and neuro immune disease Vs CDC CFS and UK Psychiatric CFS (Oxford Criteria) which the UK Medical Research Council (MRC) use for their research into CFS/ME and who believe CFS/ME is best treated with mind control (CBT) and exercise.
Interestingly, the chair of the conference, (John Stoye) co-authored a negative XMRV paper on CFS, and his employees (the MRC) are in ownership of data on ME covered under the official secrets act in the United Kingdom that cannot be released until the year 2070. The MRC also exclusively fund psychiatric medical research into CFS/ME in the UK, but will not allow biological research for reasons they refuse to explain, even in court. Their highest receiver of money from the MRC is Professor Simon Wessely, who says ME is a form of hysteria, and a reason to claim social welfare benefits. Even more interestingly the same man gave samples from his psychiatric clinic of fatigue (ME is not a psychiatric illness) to Myra McClure, who did not follow the methods of the WPI to detect XMRV, and like Stoye, also did not detect XMRV.
Combined they both produced two negative studies, and just happened to feature in the recorded Q&A session at the NIH. By chance, Dr De Meirleir, and Dr Cheny were not featured, and who both have XMRV infected patients from around the world. One may ask why negative studies (that are pointless in presenting), take precedence over positive studies, that may help explain some cases of people with the label ME CFS who have an positive XMRV blood test result and live in poverty and misery.
Thank you.