Inktober 2019: Day 20 - Tread
Dracunculus medinensis female emerging from foot.
Dracunculus medinensis, aka the Guinea worm, is a parasite found in poor, remote parts of Africa with stagnant water sources. People become infected by drinking from these water sources. Once inside a host, the Guinea worm larva penetrate the stomach and intestinal wall where they mature and reproduce. The female Guinea worm migrates to the skin surface, causing a painful, burning blister to form. This blister eventually ruptures, exposing the worm. The infected person might submerge the blister in water to relieve discomfort, upon doing so, the Guinea worm releases hundreds of thousands of larvae into the water.
Thanks to the efforts of the Guinea Worm Eradication Program (a program that educates people on Guinea worm transmission and prevention), only 28 human cases were reported in 2018.













