Evengård, B, Schacterle, R S, Komaroff, A L · Journal of internal medicine · 1999 · DOI
ME/CFS is a complex condition that affects thinking, sleep quality, and causes physical symptoms like sore throats, muscle pain, and exhaustion after activity. While many patients report that their illness began with an infection, scientists still don't fully understand how infections connect to ME/CFS. Research shows the immune system is overactive and certain brain systems aren't working normally, suggesting ME/CFS involves multiple body systems.
This perspective from leading ME/CFS researchers emphasizes that the condition is a legitimate biomedical illness with measurable immune and neurological abnormalities—not a psychological disorder. By highlighting the complexity of ME/CFS and the inadequacy of current frameworks, the authors advocate for more integrated research approaches that could accelerate understanding and treatment development.
This editorial does not establish definitive mechanisms of disease or prove causation between any single factor (like infection) and ME/CFS development. As an opinion piece rather than original data analysis, it cannot prove the specific role of immune activation or neuroendocrine abnormalities, only that evidence for their involvement exists. The study does not identify diagnostic biomarkers or establish which findings are primary versus secondary consequences.
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.