Dear Friends:
Please find below a short report on the U.S. Centers for Disease
Control and Prevention (CDC) study on XMRV and CFS.
As you know, this is contary to the October 2009 publication in
Science that suggested a possible link between XMRV and CFS. It is
also contrary to the Whittemore Peterson Institute's research study
and the NIH and FDA report which is not published.
You will note that the definition used was the 1994 International
Definition which stresses the fatigue factor.
Lydia
ABSENCE OF EVIDENCE OF XMRV IN CFS AND HEALTHY CONTROLS IN U.S. POPULATION
On July 1, 2010 the U.S. Centers for Disease Control and Prevention
(CDC) reported results from researchers and colleagues of two
institutions in which they found no evidence of infection with
xenotropic murine leukemia virus-related virus (XMRV) among patients
with chronic fatigue syndrome (CFS) and healthy controls in the United States.
The CDC-led team tested archived blood specimens from CFS patients
and healthy controls. The blinded testing was performed at CDC and
two other laboratories with negative results. The CDC concluded that
these data do not support an association between XMRV and CFS in
their study population. Their report was published in an open-access
journal Retrovirology 2010, 7:57 (July 1, 2010) By William Switzer,
Hongwei Jia, Oliver Hon, et al.
See
http://www.retrovirology.com/content/7/1/57 for summary.
It can be seen in its entirety on Provisional at
http://www.retrovirology.com/content/pdf/1742-46907-57.pdf
To evaluate a possible association with XMRV with CFS, the CDC tested
blood specimens from 51 persons with CFS and 56 healthy persons and
were from previous study groups of people who had taken part in
population-based studies of CFS in Wichita, Kansas and in
Georgia. Patients in Georgia had been referred by physicians to a
registry of fatiguing illness and had met the criteria of the 1994
International CFS Research Case Definition.
Lydia E. Neilson, M.S.M., Founder
Chief Executive Officer
National ME/FM Action Network
512 - 33 Banner Road
Nepean, ON K2H 8V7 Canada
Tel. (613) 829-6667 Fax (613) 829-8518
E-mail: ag922(a)ncf.ca
Web:
http://www.mefmaction.net