ABSTRACT
Population movement has long been recognized as an important factor in the distribution of diseases, and it seems likely that the next 50 years—like the past 50 years—will only confirm that importance for malaria. The movement of rural populations into cities, migrant workers onto agricultural holdings, and settlers and workers into developing areas over the past half-century has been associated with changes in the epidemiology of malaria. At the same time, changes in vector and parasite characteristics have added yet another layer of complexity to the task of developing approaches that will finally conquer this disease.
