[Importance of small tasks of sanitary engineering in fighting schistosomiasis].
D004738:Engineering; D006801:Humans; D012499:Sanitation; D012552:Schistosomiasis / Q000517:prevention & control*; D012722:Sewage; D014876:Water Pollution
D012722:Sewage
Importância das pequenas obras de engenharia sanitária no combate à esquistossomose.