S1a: Diagram of the 505 bp fragment and the Mbo1 cut sites for both species, S1b: Banding patterns of the restriction fragment length polymorphism (RFLP) analysis by MboI of the nuclear ITS2 region of Schistosoma. Schistosoma haematobium exhibits four bands at 281, 98, 82 and 44 bp. Schistosoma bovis exhibits three bands at 379, 82 and 44 bp. Hybrids between S. haematobium × S. bovis exhibit bands at 379, 281, 98, 82 and 44 bp.