| [survival of bulinus truncatus and biomphalaria pfeifferi in sewer water purified in stabilization ponds in a sudanese-saharan zone]. | in subsaharan africa wastewater purification to protect the health of the population could create stagnate water reservoirs for parasitic vectors such as snails which are intermediate hosts of bilharzia. laboratory studies of the survival of bulinus truncatus, an intermediate host of schistosoma haematobium, and biomphalaria pfeifferi, an intermediate host of schistosoma mansoni, in waste water purified in stabilization ponds showed that biomphalaria pfeifferi thrives to dirty water (60 mg/l < o ... | 1996 | 8767791 |