The Curse of ‘None of the Above’ Diseases

For those with poorly understood illnesses, new genetic research — and more humility from doctors — might help.

Some of these maladies have names — chronic fatigue, fibromyalgia, and others — but each is essentially a collection of unexplained symptoms lumped together into a sort of diagnostic checklist, often called a “syndrome.” And while they vary in severity and treatability, one thing they share is intangibility. (Visual by )

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