Investigating Viruses in Cells Used to Make Vaccines; and Evaluating the Potential Threat Posed by Transmission of Viruses to Humans

Investigating Viruses in Cells Used to Make Vaccines; and Evaluating the Potential Threat Posed by Transmission of Viruses to Humans
http://www.fda.gov/biologicsbloodvaccines/scienceresearch/biologicsresearchareas/ucm127327.htm

"Xenotropic murine leukemia virus-related virus (XMRV) is a recently discovered human retrovirus that has been found in both chronic fatigue syndrome and prostate cancer patients. Although these findings need further confirmation, there is a potential safety concern regarding XMRV in cell substrates used in vaccines and in transmission by blood transfusion and blood products. We are developing sensitive detection assays for XMRV to evaluate cell substrates and investigate virus transmission by blood transfusion in a monkey model."