02/22/2012 11:35 am ET

Blue-Skinned People Of Kentucky Reveal Today's Genetic Lesson

In an unusual story that involves both genetics and geography, an entire family from isolated Appalachia was tinged blue. Doctors don't see much of the rare blood disorder today, because mountain people have dispersed and the family gene pool is much more diverse. But the Fugates' story still offers a window into a medical mystery that was solved through modern genetics and a hematologist at the University of Kentucky's Lexington Medical Clinic.

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