[The role of the rat in the dynamics of endemic schistosomias in Guadeloupe].

In Guadeloupe (French Lesser Antilles), because they are simultaneously infested with Schistosoma mansoni, which causes the human intestinal schistosomiasis, and Ribeiroia marini, a Trematode which sterilizes the Mollusk-host of the schistosoma, the rats (Rattus rattus and Rattus norvegicus) seem able to influence, at least locally, the infestation of the human population.