Researchers at Israel’s Ben Gurion University are studying how to use male prawns in Africa to kill the parasitic worm that causes Schistosomiasis (Bilharzia).  The disease affects 200 million people worldwide, coming only second to Malaria in terms of the devastation it causes.

http://www.jpost.com/Israel-News/Israeli-researchers-looking-at-fighting-a-dangerous-disease-with-a-common-crustacean-460743