Definitions & diagnostic criteria
- Canadian Consensus Criteria (CCC) ( Myalgic Encephalomyelitis/Chronic Fatigue Syndrome) (ME/CFS)
- Fukuda criteria* (CDC-1994) (CFS)
- Holmes criteria
- ( Myalgic Encephalomyelitis) (ME)
Definitions with a asterisk (*) are considered to be by most ME/CFS patients, many ME/CFS patients groups, and several ME/CFS researchers as being seriously flawed in that these criteria capture individuals suffering from Chronic Fatigue and not Chronic Fatigue Syndrome, Myalgic Encephalomyelitis or Systemic Exertion Intolerance Disease.