title: How Schistosoma mansoni eggs reach natural waterbodies.
mesh_terms: D001700:Biomphalaria / Q000469:parasitology; D003672:Defecation; D005243:Feces / Q000469:parasitology; D005618:Fresh Water; D006801:Humans; D010063:Ovum; D012550:Schistosoma mansoni; D012555:Schistosomiasis mansoni / Q000635:transmission*; D012621:Seasons; D014876:Water Pollution; D015030:Zimbabwe