participates in located in Schistosoma haematobium worm Schistosoma haematobium 3 week worm Flora Logan A Schistosoma haematobium worm is the mature form of Schistosoma haematobium and capable of sexual reproduction, which is found in the pelvic blood vessels of the vesicle plexis of the human host 3 weeks after infection of the mammal host. Anna Protasio Jie Zheng Chris Stoeckert S. haematobium 3 week worm Schistosoma haematobium 3 week worm stage Homo sapiens urinary bladder