[Schistosomiasis].

Schistosomiasis ranks among the major public health problems in the tropics and subtropics. The disease is caused by the parasite Schistosoma, a flatworm with a life cyclus including man as the definitive host and a freshwater snail as the intermediate host. During the last ten years one hundred cases of this disease have been reported in Norway. We report two cases of schistosomiasis, one patient infected with Schistosoma japonicum, the first reported case in Norway, the other with Schistosoma mansoni and Schistosoma haematobium. We discuss the disease, including the clinical picture and treatment.