Oakes, Brendan, Qiu, Xiaoxing, Levine, Susan et al. · Advances in virology · 2011 · DOI
In 2009, researchers claimed they found a virus called XMRV in most ME/CFS patients' blood. This study tested whether that finding was real by looking for antibodies (immune system markers) to XMRV in blood samples from ME/CFS patients and healthy people. The researchers found no evidence of XMRV antibodies in any of the samples, suggesting the original finding may not have been accurate.
This study addresses a major controversy in ME/CFS research that created hope and confusion among patients. Definitively ruling out XMRV redirects research toward other potential causes and prevents further investment in a dead-end investigative pathway, allowing resources to focus on more promising hypotheses.
This study does not prove that no infectious agent plays a role in ME/CFS—only that XMRV specifically is not detectable in the tested populations. It also does not explain why the original Lombardi study reported different results, which could reflect differences in laboratory techniques, sample handling, or study populations rather than absence of XMRV.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Oakes, Brendan, Qiu, Xiaoxing, Levine, Susan, Hackett, John, & Huber, Brigitte T (2011). Failure to Detect XMRV-Specific Antibodies in the Plasma of CFS Patients Using Highly Sensitive Chemiluminescence Immunoassays.. Advances in virology. https://doi.org/10.1155/2011/854540
BibTeX
@article{mecfsatlas-oakes-2011-failure-detect,
author = {Oakes, Brendan and Qiu, Xiaoxing and Levine, Susan and Hackett, John and Huber, Brigitte T},
title = {Failure to Detect XMRV-Specific Antibodies in the Plasma of CFS Patients Using Highly Sensitive Chemiluminescence Immunoassays.},
journal = {Advances in virology},
year = {2011},
doi = {10.1155/2011/854540},
note = {PubMed: 22312356},
url = {https://www.mecfsatlas.com/evidence/oakes-2011-failure-detect},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/oakes-2011-failure-detect
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