Schistosoma mansoni experimental infection in Mus spretus (SPRET/EiJ strain) mice Luis Pérez del Villar, Belén Vicente, Purificación Galindo-Villardón, Andrés Castellanos, Jesús Pérez-Losada and Antonio Muro Parasite, 20 (2013) 27 Published online: 29 August 2013 DOI: 10.1051/parasite/2013027