title: [Oncomelania snail recurrence after schistosomiasis transmission interrupted in Chuxiong City].
abstract: OBJECTIVE
  To analyze the status of Oncomelania snail recurrence after schistosomiasis transmission interrupted in Chuxiong City, Yunnan Province, so as to provide the evidence for establishing the control strategy.
  
  
  METHODS
  The data of snail surveillance since 1994 were collected and analyzed.
  
  
  RESULTS
  The schistosomiasis endemic situation was stable, but the area with snails increased again seriously. In the years when the snail area was most (27.8 hm2 in 2004 and 28.0 hm2 in 2005) , it reached 12.9 times of the standard level.
  
  
  CONCLUSIONS
  The Oncomelania snail recurrence is obvious, therefore, the snail severance still need to be strengthened.
authors.affiliation: Chuxiong Municipal Center for Disease Control and Prevention, Yunnan Province, Chuxiong 675000, China.
authors.forename: Jian-Xiang
authors.initials: JX
authors.lastname: Wang
mesh_terms: D000818:Animals; D002681:China / Q000453:epidemiology; D002947:Cities / Q000453:epidemiology*; D003140:Communicable Disease Control; D004199:Disease Vectors; D006801:Humans; D012552:Schistosomiasis / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission*; D012908:Snails / Q000469:parasitology / Q000502:physiology*