Xenotropic murine leukemia virus-related virus does not pose a risk to blood recipient safety

作者：Dodd Roger Y^*; Hackett John Jr; Linnen Jeffrey M; Dorsey Kerri; Wu Yanyun; Zou Shimian; Qiu Xiaoxing; Swanson Priscilla; Schochetman Gerald; Gao Kui; Carrick James M; Krysztof David E; Stramer Susan L

来源：Transfusion, 2012, 52(2): 298-306.

DOI：10.1111/j.1537-2995.2011.03450.x

BACKGROUND: When xenotropic murine leukemia virusrelated virus (XMRV) was first reported in association with chronic fatigue syndrome, it was suggested that it might offer a risk to blood safety. Thus, the prevalence of the virus among blood donors and, if present, its transmissibility by transfusion need to be defined.
STUDY DESIGN AND METHODS: Two populations of routine blood donor samples (1435 and 13,399) were obtained for prevalence evaluations; samples from a linked donor-recipient repository were also evaluated. Samples were tested for the presence of antibodies to XMRV-related recombinant antigens and/or for XMRV RNA, using validated, high-throughput systems.
RESULTS: The presence of antibodies to XMRV could not be confirmed among a total of 17,249 blood donors or recipients (0%; 95% confidence interval [ CI], 0%-0.017%); 1763 tested samples were nonreactive for XMRV RNA (0%; 95% CI, 0%-0.17%). Evidence of infection was absent from 109 recipients and 830 evaluable blood samples tested after transfusion of a total of 3741 blood components.
CONCLUSIONS: XMRV and related murine leukemia virus (MLV) markers are not present among a large population of blood donors and evidence of transfusion transmission could not be detected. Thus, these viruses do not currently pose a threat to blood recipient safety and further actions relating to XMRV and MLV are not justified.

• 出版日期2012-2