title: [Monitoring report of Oncomelania hupensis snail distribution and diffusion in main drainages of Hexi Reservoir].
abstract: OBJECTIVE
  To understand the status of Oncomelania hupensis snail distribution and diffusion in main drainages of Hexi Reservoir and evaluate the snail control effect of the schistosomiasis control engineering of Hexi Reservoir.
  
  
  METHODS
  The O. hupensis snails were investigated by using the straw curtain method and fishing net method in different areas of the main drainages of Hexi Reservoir, and the results were analyzed.
  
  
  RESULTS
  A total of 1 800 straw curtains were used and 37 snails were found in Naxi stream. Totally 5 870 kg floats were salved and no snails were found.
  
  
  CONCLUSIONS
  The schistosomiasis control engineering of Hexi Reservoir is effective in the prevention of the snail diffusion, but there are still snails in the upstream. rherefore, the snail surveillance and control need to be strengthened.
authors.forename: Liu-hong
authors.initials: LH
authors.lastname: Zhang
authors.forename: Feng-ming
authors.initials: FM
authors.lastname: Xu
authors.forename: Hong-mei
authors.initials: HM
authors.lastname: Lu
authors.forename: Jia-sheng
authors.initials: JS
authors.lastname: Qin
authors.forename: Wei-min
authors.initials: WM
authors.lastname: Cao
authors.forename: Ya-juan
authors.initials: YJ
authors.lastname: Jiang
authors.forename: Qin-nan
authors.initials: QN
authors.lastname: Lu
mesh_terms: D000818:Animals; D002681:China; D004197:Disease Reservoirs / Q000469:parasitology; D005618:Fresh Water / Q000469:parasitology*; D006801:Humans; D011157:Population Dynamics; D012547:Schistosoma / Q000302:isolation & purification / Q000502:physiology; D012552:Schistosomiasis / Q000469:parasitology / Q000635:transmission; D012908:Snails / Q000254:growth & development* / Q000469:parasitology