Also called dracunculiasis, Guinea worm is a parasitic worm infection that occurs mainly in Africa. In fact, more than half of all cases of Guinea worm disease are reported from the southern Sudan region. Each year, 1,000 cases of Guinea worm disease are also reported in countries such as Benin, Burkina Faso, Ghana, Ivory Coast, Mali, Niger, Nigeria, Togo, and Uganda. Countries where less than 1,000 cases of the disease are reported include: Cameroon, Chad, Ethiopia, Mauritania, and Senegal.