When you hear the word "parasite," fleas, ticks and maybe tapeworms are the first things that come to mind. But getting rid of those pests is a walk in the park compared to Neglected Tropical Diseases (NTD's). These organisms can have debilitating effects on us. And some crawled right out of your nightmares -- like the worm that grows up to a meter long inside its host.

But the good news is that the pharmaceutical industry is working to permanently eradicate ten NTD's. And one of them -- the giant worm -- is already on the verge of extinction thanks to the work outline in this video.