Epidemiology of mixed Schistosoma mansoni and Schistosoma haematobium infections in northern Senegal

► Age and community of residence are strong risk factors for mixed Schistosoma infection. ► The age distribution of Schistosoma mansoni differs from that of Schistosoma haematobium. ► Infection intensities are higher in mixed Schistosoma than in single infections. ► Infection intensities are highest in mixed infections with ectopic egg elimination.