| schistosomiasis in the gorgol valley of mauritania. | schistosomiasis may be increasing in west africa due to the development of water-resource projects which were given a strong impetus by the disastrous sahelian drought. this report concerns the existing epidemiology of schistosomiasis in west africa for the fourth region of mauritania, along the gorgol river. in this area two reservoirs are proposed, to supply a new rice irrigation system. during may and november 1974, field surveys were made to determine the prevalence and intensity of schistos ... | 1976 | 961977 |