Autochthonous cases of schistosomiasis in children in Recife, Northeastern Brazil.

Objective: Investigate breeding sites with host snails and autochthonous human cases of schistosomiasis.

Methods: Between July 2010 and September 2012 were performed: (1) malacological survey searching for breeding sites, collection and identification of Biomphalaria snails positive for Schistosoma mansoni in Recife, PE, Northeastern Brazil; (2) prevalence survey in 2,718 schoolchildren aged from seven to 14 years old to identify cases of schistosomiasis, clinical examination and ultrasound in positive cases of S. mansoni.