Earliest depiction of 'Fiery Serpent' found in medieval painting.

Italian researchers examining a medieval painting may have found the earliest depiction of dracunculiasis, a parasitic infection in which a long worm creeps out of the skin. The parasite could have earned its nickname 'fiery serpent' because it causes excruciating burning pain as it bursts through the skin.
Read more: http://www.livescience.com/58298-earliest-depiction-of-guinea-worm-medieval-painting.html?source=Snapzu