Summary Background Post-COVID-19 syndrome (PCS) is characterised by a wide range of
symptoms, primarily fatigue and exertion intolerance. While disease courses in the early …

Post-exertional malaise (PEM) is a key symptom of myalgic encephalomyelitis (ME) and
chronic fatigue syndrome (CFS). Currently, five PEM-items from the DePaul Symptom …

One of the key requirements of a reliable case definition is the use of standardized
procedures for assessing symptoms. This article chronicles the development of the DePaul …

Public health and welfare systems request documentation on approaches to diagnose, treat,
and manage myalgic encephalomyelitis and assess disability-benefit conditions. Our …

Purpose Studies to determine epigenetic changes associated with myalgic
encephalomyelitis/chronic fatigue syndrome (ME/CFS) remain scarce; however, current …

The etiology and pathogenesis of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
(ME/CFS) are unknown, and autoimmunity is one of many proposed underlying …

Background Chronic fatigue syndrome (CFS) is a disabling illness of unknown aetiology.
Disruption of gut microbiota may play a role in several neurological disorders. In this study …

Background Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a complex
condition involving multiple organ systems and characterized by persistent/relapsing …

Abstract Introduction Post-COVID-19 syndrome (PCS) is characterized by a wide range of
symptoms, predominantly fatigue and exertional intolerance. While disease courses during …

Background and objectives: There is still an uncertainty regarding the clinical
symptomatology and the diagnostic criteria in terms of myalgic encephalomyelitis/chronic …