Only those with active CFS were turned away. Dr Keller said this accounted for about 70 intending donors in the past two years.
Earlier this month, Canadian authorities placed a total ban on taking blood donations from people with a history of CFS.
XMRV (Xenotropic murine leukaemia virus-related virus) was first detected in prostate tumours in 2006, and a US study late last year found it was commonly detected in blood taken from people with CFS.
The study took in blood samples from 101 people with CFS and 95 per cent showed evidence of XMRV infection, though subsequent studies have not produced the same results, AAP reported.
Source-Medindia
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