| [intestinal schistosomiasis from schistosoma mansoni in madagascar: extent and center of the endemic]. | schistosoma mansoni and s. haematobium affect respectively 2 million and 500,000 persons in madagascar. over the past decade, s. mansoni has spread in the central highlands of madagascar, essentially throughout the mid-west and antananarivo plain. to understand this recent change in the epidemiology of s. mansoni, we examined the relationship between its spatial distribution and several host factors, including labour migration, urbanization and water development projects. in the highlands, the d ... | 1999 | 10399598 |