The effect of ecological environmental changes and mollusciciding on snail intermediate host of Schistosoma in Qianjiang city of China from 1985 to 2015

doi:10.1186/s13071-020-04273-1

	The effect of ecological environmental changes and mollusciciding on snail intermediate host of Schistosoma in Qianjiang city of China from 1985 to 2015
	Qiu, Juan 2; Li, Rendong 2; Zhu, Hong 3; Xia, Jing 3; Xiao, Ying 3; Huang, Duan 1; Wang, Yong 4
刊名	PARASITES & VECTORS
	2020-08-05
卷号	13 期号:1 页码:10
关键词	Ecological environmental changes Mollusciciding Schistosoma Snail control Multilevel growth model
ISSN号	1756-3305
DOI	10.1186/s13071-020-04273-1
通讯作者	Qiu, Juan(qiujuan@asch.whigg.ac.cn) ; Wang, Yong(wangy@igsnrr.ac.cn)
英文摘要	Background: Schistosomiasis remains prevalent in Africa, Asia and South America with an estimated burden of 1.9 million disability-adjusted life years in 2016. Targeting snails as a key to success for schistosomiasis control has been widely approved, but the long-term quantitative effects of interventions on snail control that would inform and improve future control programmes are unclear. Over the last six decades, schistosomiasis in China had been brought largely under control, and snail control as supplementary methods or part of integrated multisectoral approaches in different historical periods has played an essential role. Methods: Ecological environment factors, prevalence and control data onOncomelania hupensisbetween 1985 and 2015 at 5-year intervals in Qianjiang city, China, were collected. A multilevel growth model approach was used to examine the long-term effects of ecological environmental changes and mollusciciding on snail-infested area (SIA) and living snail density (LSD) during the 30 years. Results: The variation of SIA was 68.4% in spatial distribution, while the variation of LSD was 68.4% in temporal distribution. Continuous mollusciciding could result in significant LSD reduction, but may not lead to significant SIA reduction. The normalized difference vegetation index (NDVI), patch size coefficient of variation (PSCoV) and mean patch size (MPS) reduction, slightly due to eco-environmental changes decreased SIA, while mean perimeter-area ratio (MPAR) and dry farm-land proportion (DFLP) reduction might increase SIA. Only NDVI and MPAR reduction led to a lower LSD. Conclusions: Mollusciciding was more effective in reducing snail density, but it is not easy to eliminate snails completely. Environmental modifications could completely change the snail breeding environment and reduce its infestation area. Due to difficulty of scaling-up the current environmental modifications in waterway network regions, more effective snail control methods are needed. The experience in China could thereby provide guidance for other schistosomiasis endemic areas with a high snail prevalence.
资助项目	National Natural Science Foundation of China[81803297]
WOS关键词	ONCOMELANIA-HUPENSIS ; REGIONS ; AREAS ; LAKE
WOS研究方向	Parasitology ; Tropical Medicine
语种	英语
出版者	BMC
WOS记录号	WOS:000561056400003
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/158028]
专题	中国科学院地理科学与资源研究所
通讯作者	Qiu, Juan; Wang, Yong
作者单位	1.East China Univ Technol, Fac Geomat, Nanchang, Jiangxi, Peoples R China 2.Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol, Key Lab Monitoring & Estimate Environm & Disaster, Wuhan, Peoples R China 3.Hubei Prov Acad Prevent Med, Hubei Ctr Dis Control & Prevent, Wuhan, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Juan,Li, Rendong,Zhu, Hong,et al. The effect of ecological environmental changes and mollusciciding on snail intermediate host of Schistosoma in Qianjiang city of China from 1985 to 2015[J]. PARASITES & VECTORS,2020,13(1):10.
APA	Qiu, Juan.,Li, Rendong.,Zhu, Hong.,Xia, Jing.,Xiao, Ying.,...&Wang, Yong.(2020).The effect of ecological environmental changes and mollusciciding on snail intermediate host of Schistosoma in Qianjiang city of China from 1985 to 2015.PARASITES & VECTORS,13(1),10.
MLA	Qiu, Juan,et al."The effect of ecological environmental changes and mollusciciding on snail intermediate host of Schistosoma in Qianjiang city of China from 1985 to 2015".PARASITES & VECTORS 13.1(2020):10.