participates in Schistosoma mansoni worm Schistosoma mansoni adult worm S. mansoni adult worm A Schistosoma mansoni worm is the fully developed mature form of Schistosoma mansoni and capable of sexual reproduction, which lives in the small inferior mesenteric blood vessels surrounding the large intestine of the mammal host. Chris Stoeckert Jie Zheng Anna Protasio Flora Logan Schistosoma mansoni adult worm stage