A community-based survey of human toxoplasmosis in rural Amazonia: seroprevalence, seroconversion rate, and associated risk factors - Ferreira, Marcelo Urbano; Hiramoto, Roberto Mitsuyoshi; Aureliano, Débora P; Silva-Nunes, Mônica da; Silva, Natal Santos da; Malafronte, Rosely dos Santos; Muniz, Pascoal Torres (American journal of tropical medicine and hygiene, 2009)