Genetic analysis of Schistosoma mansoni in a low-transmission area in Brazil suggests population sharing between wild-hosts and humans and geographical isolation - Karina Varella; Rosana Gentile; Roberto do Val Vilela; Silvana Carvalho Thiengo; Aline dos Santos Moreira; José Roberto Machado-Silva; Thiago dos Santos Cardoso; Sócrates Fraga da Costa-Neto; Beatriz de Lima Alessio Müller; Alexandre Araujo Cunha dos Santos; Arnaldo Maldonado Junior (PLoS Neglected Tropical Diseases)