The susceptibility of Bimphalaria glabrata and Biomphalaria tenagophila, collected in the Federal District of Brazil, to infection by Schistosoma mansoni is here studied. The author also relates the geographical distribution of the snails' habitats and their living conditions to the source of the autochthonous cases known in the Federal District.
Schistosomiasis; Schistosoma mansoni; Biomphalaria glabrata; Biomphalaria tenagophila