The African soapberry plant [Phytolacca dodecandra], traditionally cultivated in many parts of the continent as a laundry soap and shampoo, contains a molluscicide (snail-killing agent). The berries of the plant, known in Ethiopia as endod, are lethal to most species of snails. This discovery offers a potentially low-cost agent in the control of snail-borne diseases like schistosomiasis, or sleeping sickness (affecting 200 million people in Africa, Asia and Latin America and causing 200,000 deaths every year), liver-fluke in animals, onchocerciasis (river blindness) and guinea worm infections. Toxicological studies have proved the plant safe for humans and other animals and plants; WHO has approved extensive field trials.