Elimination of Schistosoma japonicum Transmission in China: A Case of Schistosomiasis Control in the Severe Epidemic Area of Anhui Province

Linhan Li, Yibiao Zhou, Tianping Wang, Shiqing Zhang, Gengxin Chen, Genming Zhao, Na He, Zhijie Zhang, Dongjian Yang, Ya Yang, Yu Yang, Hongchang Yuan, Yue Chen and Qingwu Jiang
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Linhan Li: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Yibiao Zhou: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Tianping Wang: Institute for the Prevention and Control of Schistosomiasis in Anhui Province, 337 Wuhu Road, Hefei 230061, China
Shiqing Zhang: Institute for the Prevention and Control of Schistosomiasis in Anhui Province, 337 Wuhu Road, Hefei 230061, China
Gengxin Chen: Guichi Antischistosomiasis Station, West Qiupu Road, Chizhou 247100, China
Genming Zhao: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Na He: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Zhijie Zhang: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Dongjian Yang: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Ya Yang: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Yu Yang: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Hongchang Yuan: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China
Yue Chen: School of Epidemiology and Public Health, University of Ottawa, 600 Peter Morand, Ottawa, ON K1G 5Z3, Canada
Qingwu Jiang: Department of Epidemiology, School of Public Health, Fudan University, 130 Dong’an Road, Shanghai 200032, China

IJERPH, 2019, vol. 16, issue 1, 1-10

Abstract: Over the several decades, China has been incessantly optimizing control strategies in response to the varying epidemic situations of schistosomiasis. We evaluated continuously the changing prevalence under different control strategies of two villages, Sanlian and Guifan, in China through five phases lasting 37 years. We tested residents, calculated prevalence and discussed change causes. We found the prevalence in Sanlian did not differ significant from that of Guifan ( p = 0.18) in 1981, but decreased to 2.66%, much lower than Guifan’s 11.25%, in 1984 ( p = 0). Besides, prevalence in Guifan increased to 21.25% in 1987, while in Sanlian it rose to 20.78% until 1989. Those data confirmed that praziquantel combined with snail control could better reduce the prevalence. From 1992 to 1994, the prevalence in the two villages displayed downtrends, which showed the World Bank Loan Project worked. From 1995 to 2004, repeated oscillations with no obvious change trend was seen. Since 2005, the prevalence in both villages has shown a significant downtrend ( p < 0.05), which suggests the integrated strategy is effective. We considered the control strategies were implemented suitably in the study area under changing social circumstances. Adjusting the strategy in consideration of social transformations is necessary and vital. The experience may be useful for policy making of other epidemic areas with an analogous situation.

Keywords: evaluation; method; policy; strategy; social; trend (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
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