US scientists claim chronic fatigue syndrome breakthrough
By Ian Quinn
US scientists claim to have made a potentially crucial breakthrough in the battle to find what causes chronic fatigue syndrome (CFS) or ME.
Research, published in the journal Science, suggests that a single retrovirus known as XMRV could be behind the condition, estimated to affect 17 million people worldwide.
They found the virus in 67% of ME patients compared to under 4% of the general population, raising hopes of new treatments.