Keighley, B D, Bell, E J · The Journal of the Royal College of General Practitioners · 1983
This study from 1983 examined 20 patients in a rural area who had long-lasting, hard-to-define illnesses. Researchers tested their blood for viral infections and found that 16 of these patients had high levels of Coxsackie B virus antibodies. Thirteen of these patients appeared to have myalgic encephalomyelitis (ME), while three had mainly heart-related symptoms. The findings suggest that a viral infection might be connected to ME, though the exact cause remains unclear.
This early study provides historical evidence linking Coxsackie B virus to ME/CFS, contributing to decades of investigation into infectious triggers of the illness. It highlights that ME was recognized as a distinct clinical entity worthy of systematic investigation in primary care, helping establish the disease's legitimacy in medical literature. The findings have influenced subsequent research exploring viral reactivation and post-viral illness mechanisms in ME/CFS.
This study does not prove that Coxsackie B virus causes ME/CFS, only that an association exists in this small sample. The absence of control data from healthy individuals prevents determination of whether these antibody titres are unusually elevated or represent normal background seropositivity. The study's small size and lack of long-term follow-up limit conclusions about whether viral markers predict disease course or recovery.
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 →
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