Benign myalgic encephalomyelitis (Akureyri disease, Iceland disease).
BLATTNER, R J·The Journal of pediatrics·1956
This 1956 study describes an outbreak of a disease called Akureyri disease (also known as Iceland disease) that affected multiple people in Iceland. The disease caused muscle pain and fatigue similar to what we now call ME/CFS. This early medical observation helped document that ME/CFS-like illnesses have occurred in clusters and have affected communities for decades.