Galbraith, D N, Nairn, C, Clements, G B · The Journal of general virology · 1997 · DOI
Researchers tested blood samples from 8 people with ME/CFS and found traces of enterovirus (a type of virus) in samples taken at least 5 months apart. In 4 of these individuals, the virus appeared to be the same virus persisting in their body over time, rather than a new infection. This suggests that some people with ME/CFS may have viruses that linger in their system rather than being cleared completely.
This research provides potential molecular evidence that some ME/CFS patients may harbor persistent enteroviral infections rather than experiencing only acute viral illness followed by recovery. Understanding whether enteroviral persistence contributes to ME/CFS pathophysiology could inform future treatment strategies and help explain why symptoms persist in some patients.
This study does not prove that enteroviral persistence causes ME/CFS, as it lacks a control group of healthy individuals or symptomatic non-CFS patients for comparison. Detecting viral sequences does not establish that the virus is actively replicating or causing ongoing symptoms. The small sample size (n=8) limits generalizability to the broader ME/CFS population.
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 →
Contribute
Private, reviewed by a human. Not a public comment thread.