Zhang, Lihan, Gough, John, Christmas, David et al. · Journal of clinical pathology · 2010 · DOI
This study looked at blood samples from ME/CFS patients to identify different genetic subtypes based on how 88 genes were turned on or off. Researchers found that ME/CFS patients had distinct genetic patterns that were different from healthy people and those with depression. They also discovered that different viral infections—particularly Epstein-Barr virus and enterovirus—were linked to different genetic subtypes of ME/CFS.
This research suggests ME/CFS is not a single uniform disease but comprises multiple distinct biological subtypes, which could explain why patients respond differently to treatments and have varying symptoms. Understanding these subtypes and their links to specific infections may help develop targeted diagnostic tools and personalized treatment strategies for different ME/CFS patients.
This study does not prove that specific infections cause ME/CFS or particular subtypes—it only shows associations between past infections and genetic patterns. The cross-sectional design means we cannot determine the direction of causality or whether infections triggered the genetic changes or occurred after disease onset. Findings require replication in larger, prospective studies before clinical application.
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
Zhang, Lihan, Gough, John, Christmas, David, Mattey, Derek L, Richards, Selwyn C M, Main, Janice, et al. (2010). Microbial infections in eight genomic subtypes of chronic fatigue syndrome/myalgic encephalomyelitis.. Journal of clinical pathology. https://doi.org/10.1136/jcp.2009.072561
BibTeX
@article{mecfsatlas-zhang-2010-microbial-infections,
author = {Zhang, Lihan and Gough, John and Christmas, David and Mattey, Derek L and Richards, Selwyn C M and Main, Janice and Enlander, Derek and Honeybourne, David and Ayres, Jon G and Nutt, David J and Kerr, Jonathan R},
title = {Microbial infections in eight genomic subtypes of chronic fatigue syndrome/myalgic encephalomyelitis.},
journal = {Journal of clinical pathology},
year = {2010},
doi = {10.1136/jcp.2009.072561},
note = {PubMed: 19955554},
url = {https://www.mecfsatlas.com/evidence/zhang-2010-microbial-infections},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/zhang-2010-microbial-infections
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