The licensed serology test will detect antibodies to Human Gamma Retroviruses that include XMRV and other human MLV-related viruses. The cost is $249. Those who previously tested negative by virus culture will receive a letter in a few weeks explaining our retest program at no extra cost to the patient. If enough of us come up positive as I and some others have. Scientist cannot ignore us! this cost is still not covered by insurance yet I dont think. I would be suprised if a lot of fibromyalgia patients did not come back positive. Where is our Phoenix rising for fibromyalgia???