Sairenji, Takeshi, Nagata, Keiko · Nihon rinsho. Japanese journal of clinical medicine · 2007
This review looked at research on whether viruses and other infections might trigger ME/CFS. Most people with ME/CFS report having a flu-like illness before their symptoms started, which led researchers to investigate if infections could cause long-term immune system problems. The authors summarized what scientists have learned about different viruses, bacteria-like organisms, and other microbes that might be involved in ME/CFS development.
Understanding whether infections trigger ME/CFS is crucial for developing prevention strategies and identifying which patients might benefit from specific treatments. This review helps consolidate evidence about infectious triggers, which could inform future research into why some people develop long-term illness after infections while others recover normally.
This review does not establish that any single virus or microbe causes ME/CFS in all patients, nor does it prove causation—only that infections may precede illness onset in many cases. The heterogeneous nature of ME/CFS means different patients may have different triggers, and correlations between infections and symptom onset do not confirm that the infection directly caused the chronic condition.
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
Sairenji, Takeshi & Nagata, Keiko (2007). [Viral infections in chronic fatigue syndrome].. Nihon rinsho. Japanese journal of clinical medicine. https://pubmed.ncbi.nlm.nih.gov/17561687/
BibTeX
@article{mecfsatlas-sairenji-2007-viral-infections,
author = {Sairenji, Takeshi and Nagata, Keiko},
title = {[Viral infections in chronic fatigue syndrome].},
journal = {Nihon rinsho. Japanese journal of clinical medicine},
year = {2007},
note = {PubMed: 17561687},
url = {https://www.mecfsatlas.com/evidence/sairenji-2007-viral-infections},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/sairenji-2007-viral-infections
Contribute
Private, reviewed by a human. Not a public comment thread.