Prevalence of and risk factors for cystic echinococcosis among herding families in five provinces in western China: a cross-sectional study
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Ruixia Yuan1,2, Hairong Wu3, Heng Zeng2, Ping Liu2, Quangang Xu2, Lu Gao2, Yin Li2, Rendong Li4, Duan Huang4, Chuanhua Yu1 and Xiangdong Sun2
1Department of Epidemiology and Biostatistics, School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
2China Animal Health and Epidemiology Center, Qingdao 266032, Shandong Province, China
3College of Journalism and Communication, Guangxi University, Nanning 530004, Guangxi Province, China
4Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, Hubei Province, China
Chuanhua Yu, email: [email protected]
Xiangdong Sun, email: [email protected]
Keywords: cystic echinococcosis, prevalence, risk factors, herding families, China’s western provinces
Received: June 03, 2017 Accepted: August 04, 2017 Published: September 23, 2017
Echinococcosis is a severe zoonosis that endangers the health of herdsmen in China’s western provinces. This study aimed to examine the prevalence of this disease and identify potential factors associated with human echinococcosis among herding families.
A cross-sectional study was conducted in five provinces in western China from May 1, 2016 to November 30, 2016, and 1500 herding families participated in the study. A total of 1211 completed questionnaires were analyzed. The prevalence of Cystic echinococcosis (CE) among surveyed herding families was 1.55%. The results of multivariate analysis revealed that the sheep immunization (OR=0.35, 95%CI 0.21-0.58), being concerned about family members echinococcosis (OR=0.49, 95%CI 0.28-0.84) were protective factors, while allowing dogs to roam free (OR=3.17, 95%CI 1.89-5.31), feeding dogs with viscera (OR=3.04, 95%CI 1.83, 5.03), slaughter at home (OR=3.53, 95%CI 2.04-6.12), drinking non-boiled water (OR=2.15, 95%CI 1.28-3.63), eating raw vegetables (OR=1.87, 95%CI 1.13-3.10), not washing hands before meals (OR=3.08, 95%CI 1.68-5.65), and often seeing stray dogs (OR=2.60 95%CI 1.38-4.91) and wild animals (OR=1.92, 95%CI 1.17-3.14) near habitations were more associated with increased risk of infection.
Immunizing sheep, appropriately managing domestic and stray dogs, and improving living environments and behavioral factors may help to reduce the risk of human echinococcosis in western China.
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