Nearing Eradication, Parasitic Guinea Worm Jumps Species to Dogs
Former President Jimmy Carter has vowed to see the last Guinea Worm die before he does -- and with the parasite eradicated from all but four countries, he's close. But now the enemy has found a new place to hide. The Guinea Worm Dracunculus medinensis is a horrific human parasite. Its larvae infect tiny fresh-water copepods which then enter the human digestive system through unfiltered drinking water. The larvae then tunnel their way through the host's stomach and intestinal walls, where they mature and turn the human abdominal cavity into their own kinky sex cave. The males die in there, but each two-foot-long, fertilized female migrates to the host's skin -- generally somewhere on the lower body -- and causes an excruciating blister to form. When the host attempts to relieve the blister with immersion in water, the female seems to sense the temperature change, bursts out of the blister and excretes her foul larvae to begin the cycle anew. The entire human portion of th...