Bananal is an important focus of Schistosoma mansoni in the State of São Paulo. Accordingly, programmed active search for human cases, annual coproscopic surveys and treatment of infected cases were started in 1998, aiming at producing a sharp prevalence rate drop by the year 2000. S. mansoni eggs were searched for in two Kato-Katz slides per patient. Cases were followed up according to the routine of the local Family Health Program. In 1998, 130 samples out of 3,860 showed S. mansoni eggs; in 1999, 105 out of 3,550, and in 2000, 64 out of 3,528. Prevalence rates were 3.4

作者：Horacio Manuel Santana, Teles；Maria Esther, de Carvalho；Cláudio, Santos Ferreira；Fabiana, Zacharias；Valquíria Rosa, de Lima；Maria Lucia Condino, Fadel

来源：Memorias do Instituto Oswaldo Cruz 2002 年 97 Suppl 1卷