Dracunculiasis, also called Guinea-worm disease, is a parasitic infection by the Guinea worm, Dracunculus medinensis. A person becomes infected by drinking water containing water fleas infected with guinea worm larvae. The worms penetrate the digestive tract and escape into the body. Around a year later, the adult worm migrates to an exit site – usually a lower limb – and induces an intensely painful blister on the skin. The blister eventually bursts to form an intensely painful open wound, from which the worm slowly crawls over several weeks. The wound remains painful throughout the worms emergence, disabling the infected person for the three to ten weeks it takes the worm to emerge. During this time, the open wound can become infected with bacteria, leading to death in around 1% of cases.There is no medication to treat dracunculiasis. Instead, the mainstay of treatment is the careful wrapping of the emerging worm around a small stick to encourage its exit. Each day, a few more centimeters of the worm emerge, and the stick is turned to maintain gentle tension. With too much tension, the worm can break and die in the wound, causing severe pain and swelling at the ulcer site. Dracunculiasis is a disease of extreme poverty, occurring in places with poor access to clean drinking water. Prevention efforts center on filtering drinking water to remove water fleas, as well as public education campaigns to discourage people from soaking their emerging worms in sources of drinking water.
See also
Bruns nystagmus
Myoclonus
Oscillopsia
Opsoclonus
Optokinetic nystagmus

Explanatory notes


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