The rare disease search engine that outperforms Google

A powerful new search engine designed to help diagnose rare diseases could prove a boon for both medics and the public.  In the late 1940s, a professor at the University of Maryland School of Medicine coined an unusual phrase to describe unexpected diagnoses. “When you hear hoofbeats behind you, don’t expect to see a zebra,” he said. The phrase stuck and today, medics commonly use the term “zebra” to describe a rare disease, usually defined as one that occurs in less than 1 in 2000 of the population. Read more here.