title: Manson's schistosomiasis--progress and continuing problems.
mesh_terms: D000818:Animals; D001938:Brazil; D005243:Feces / Q000469:parasitology; D006801:Humans; D010270:Parasite Egg Count; D011647:Puerto Rico; D012550:Schistosoma mansoni; D012555:Schistosomiasis mansoni / Q000188:drug therapy / Q000517:prevention & control*