title: Prevalence of Cystic Echinococcosis in Slaughtered Sheep as an Indicator to Assess Control Progress in Emin County, Xinjiang, China.
abstract: Hydatid disease imposing serious threat on human health and great loss in live¬stock pastoralism remains a major public health problem in western China. To assess and monitor the effect of control program on transmission dynamics, we used the prevalence of cystic echinococcosis in slaughtered sheep at slaughterhouse as an indicator during the period of 2007 to 2013 in Emin County, Xinjiang Uygur Autonomous Region, China. The results showed a significant decline trend of prevalence in all age groups during the 7 years when the control program was implemented; particularly, the rate was reduced by 72% after first 3 years. Among the sheep slaughtered, the age distribution evidenced that the prevalence increased significantly as the sheep grew older. The baseline data indicated that the rate was 4.5% at the age <1, 6.7% at age 2~, and reached to the highest 17.9% at age ≥ 4 years. Earlier response to the intervention pressure was seen in the sheep at the younger age. Significant decline started from 2008 at the age <1, from 2009 at age of 1~, 2010 at 2~ to 3~, and the latest, in 2012 at age ≥ 4. This study demonstrated that the prevalence of cystic echinococcosis in slaughtered sheep may be used as an indicator to assess and monitor the transmission status during and after control program providing information for betterment of performance to sustain control strength.
authors.affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.
authors.forename: Shijie
authors.initials: S
authors.lastname: Yang
authors.affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.
authors.forename: Weiping
authors.initials: W
authors.lastname: Wu
authors.affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.
authors.forename: Tian
authors.initials: T
authors.lastname: Tian
authors.affiliation: Xinjiang Center for Disease Control and Prevention, Wulumuqi, Xinjiang 832003, China.
authors.forename: Jiangshan
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Emin County Center for Disease Control and Prevention, Xinjiang 834600, China.
authors.forename: Kang
authors.initials: K
authors.lastname: Chen
authors.affiliation: Emin County Center for Disease Control and Prevention, Xinjiang 834600, China.
authors.forename: Qinyan
authors.initials: Q
authors.lastname: Wang
authors.affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Feng
mesh_terms: D000003:Abattoirs / Q000706:statistics & numerical data; D000818:Animals; D002681:China / Q000453:epidemiology; D004443:Echinococcosis / Q000453:epidemiology / Q000469:parasitology / Q000517:prevention & control / Q000662:veterinary*; D005260:Female; D008297:Male; D015995:Prevalence; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology / Q000469:parasitology / Q000517:prevention & control*
keywords: China; Echinococcus granulosus; Xinjiang; cystic echinococcosis; prevalence; sheep; transmission