"More than half of the world's population is at risk of the tropical diseases malaria, leprosy, schistosomiasis, lymphatic filariasis, onchocerciasis, Chagas' disease, African trypanosomiasis and leishmaniasis and half a billion are infected with at least one of these diseases." J. H. F. Remme, World Health Organisation, 1993. "If it is true that science is not limited by frontiers and all research Institutions then belong to mankind, so it is natural for each Institution to be responsible for the problems of those who live in the geographic area under its influence. There are no specific...