Scientists 'develop first test for chronic fatigue syndrome'

Scientists say they have developed the world's first blood test to diagnose myalgic encephalomyelitis, also known as chronic fatigue syndrome (ME/CFS).

- Andrew Gregory Health editor

There is currently no test for the condition and patients tend to be diagnosed based on symptoms, which means many people can go undiagnosed for years.

Some experts not involved with the new research urged caution and said the test would need to be fully validated in better designed and independent studies before it could be considered for use in clinical practice.