title: [Longitudinal observation of epidemic dynamics of schistosomiasis in bovine in two mountainous endemic regions].
abstract: OBJECTIVE
  To understand the endemic situation dynamics of schistosomiasis in domestic animals (mainly bovine) in mountainous endemic regions, so as to provide the reference for evaluating the control effect and improving control strategy.
  
  
  METHODS
  Two representative pilots (Renmei and Dacang) in mountainous schistosomiasis endemic regions were selected for survey. The schistosome infection status of bovine was investigated by the miracidium hatching method, the pasture of bovine were investigated by home visiting, and the distributions of wild feces and Oncomelania snails, and the snail schistosome infection status were also investigated in April and September every year.
  
  
  RESULTS
  The schistosome infection rates of bovine reduced by 98.4% and 93.8% in two pilots in 2007 compared with those in 1993, and the infection intensities also showed a decline trend. The infection rate of wild faces was 0 in Renmei pilot since 1995, while in Dacang pilot, the infection rate of wild feces fluctuated in 2007, and the intensities of living snails and infected snails showed a declined trend.
  
  
  CONCLUSIONS
  Due to the special natural environment of mountainous endemic regions, there is a dot-like or band-like distribution of endemic areas. The strengthening of schistosomiasis examination and chemotherapy will rapidly reduce endemic situation. However, to completely interrupt the transmission of schistosomiasis, we should emphasize environmental modification and domestic animal management.
authors.affiliation: Shanghai Veterinary Research Institute, National Laboratory of Animal Schistosomiasis Control, Chinese Academy of Agricultural Sciences, Shanghai 200241, China.
authors.forename: Yao-Jun
authors.initials: YJ
authors.lastname: Shi
authors.forename: Hao
authors.initials: H
authors.lastname: Li
authors.forename: Ke
authors.initials: K
authors.lastname: Lu
authors.forename: Guo-Dong
authors.initials: GD
authors.lastname: Dong
authors.forename: Guang-Qiong
authors.initials: GQ
authors.lastname: Mao
authors.forename: Li
authors.initials: L
authors.lastname: Guo
authors.forename: Kun
authors.initials: K
authors.lastname: Ma
authors.forename: Jian-Xin
authors.initials: JX
authors.lastname: Gao
authors.forename: Jun-Kai
authors.initials: JK
authors.lastname: Yang
authors.forename: Zhi-Qiang
authors.initials: ZQ
authors.lastname: Fu
authors.forename: Chuan-Gang
authors.initials: CG
authors.lastname: Zhu
authors.forename: Jian-Mei
authors.initials: JM
authors.lastname: Yang
authors.forename: Ya-Mei
authors.initials: YM
authors.lastname: Jin
authors.forename: Chun-Xiu
authors.initials: CX
authors.lastname: Yuan
authors.forename: Guo-Feng
authors.initials: GF
authors.lastname: Cheng
authors.forename: Xin-Gang
authors.initials: XG
authors.lastname: Feng
authors.forename: Jiao-Jiao
authors.initials: JJ
authors.lastname: Lin
authors.forename: Jin-Ming
authors.initials: JM
authors.lastname: Luu
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000469:parasitology / Q000517:prevention & control; D002681:China / Q000453:epidemiology; D003140:Communicable Disease Control; D019353:Endemic Diseases / Q000517:prevention & control; D012554:Schistosomiasis japonica / Q000453:epidemiology* / Q000469:parasitology / Q000517:prevention & control