Chin J Schisto Control ›› 2019, Vol. 31 ›› Issue (6): 603-.

### Spatio-temporal analysis of Oncomelania hupensis along Jiangsu section of the Yangtze River from 2015 to 2017

LIU Lu1,2, YANG Kun1,2, ZHANG Jian-Feng1,2, WU Feng1,2, SHI Liang1,2, ZHAO Song1,2, HE Jian1,2, LI Wei1,2*

1. 1 Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China; 2 Public Health Research Center, Jiangnan University, China
• Online:2020-01-17 Published:2020-01-18

### 2015-2017年长江江苏段流域螺情时空分析

1. 1 国家卫生健康委员会寄生虫病预防与控制技术重点实验室、江苏省寄生虫与媒介控制技术重点实验室、江苏省血吸虫病防治研究所（无锡214064）；2 江南大学公共卫生研究中心
• 作者简介:刘璐，女，硕士，研究实习员。研究方向：寄生虫病流行病学
• 基金资助:
江苏省科技专项（BM2015024）；江苏省无锡市卫生计生委科研项目（Q201712、Q201637）

Abstract: Objective　To investigate the spatio?temporal characteristics of Oncomelania hupensis snails along the Jiangsu section of the Yangtze River, so as to provide evidence for eliminating schistosomiasis and formulating precision control measures in Jiangsu Province. Methods　A total of 75 marshlands were randomly sampled from Nanjing, Zhenjiang and Yangzhou cities along the Jiangsu section of the Yangtze River basin, and the spatio?temporal distribution and changing patterns of O. hupensis snails were investigated using the spatial autocorrelation analysis, kernel density analysis and hotspot analysis during the period from 2015 through 2017. Results　There was a spatial autocorrelation in the mean snail density along the Jiangsu section of the Yangtze River basin during the period from 2015 through 2017. The number of living snails and the density of living snails showed an overall decline in Yangzhou City; however, both showed a slight increase in 2016. Kernel density analysis and hotspot analysis showed that the hotspots of living snails were located in the regions neighboring the marshlands at the Yangzhou?Zhenjiang boundary areas along the Jiangsu section of the Yangtze River basin. Conclusion　There is a spatial autocorrelation in the snail distribution with hotspots along the Jiangsu section of the Yangtze River basin, and the surveillance of snails should not be neglected in the marshlands in Jiangsu Province.

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