Spatial-temporal variations of Schistosoma japonicum distribution after an integrated national control strategy: a cohort in a marshland area of China

BMC Public Health

Qing-Wu Jiang⁵  Gen-Ming Zhao¹  Jian-Guo Wei¹  Yuan-Pei Li¹  Zong-Gui He⁴  Shi-Min Han⁴  Chris Rea²  Geng-Xin Chen⁴  Song Liang³  Yi-Biao Zhou⁵ 

[1] Department of Epidemiology, School of Public Health, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China;College of Public Health, The Ohio State University, Columbus, OH, USA;Emerging Pathogens Institute, University of Florida, Gainesville, FL, 32610, USA;Guichi Anti-schistosomiasis Station, Anhui, China;Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China

关键词: Schistosoma japonicum;    Spatial scan statistic;    Spatial autocorrelation analysis;    Spatial-temporal distribution;    Geographical information system;    Intervention;    Schistosomiasis;   

Others  :  1162383
DOI  :  10.1186/1471-2458-13-297

 received in 2012-08-28, accepted in 2013-03-26,  发布年份 2013

【 摘 要 】

Background

Schistosomiasis transmission is typically focal. Understanding spatial variations of Schistosoma infections and their associated factors is important to help to invent site-specific intervention strategies.

Methods

A five-year longitudinal study was carried out prospectively in 12 natural villages, Guichi district of Anhui province. A GIS-based spatial analysis was conducted to identify geographic distribution patterns of schistosomiasis infections at the household scale.

Results

The results of the spatial autocorrelation analysis for 2005 showed that there were significant spatial clusters of human infections at the household level, and these results were in agreement with that of the spatial scan statistic. As prevalence of infections in humans decreased over the course of control, the spatial distribution of these infections became less heterogeneous.

Conclusions

The findings imply that it may be necessary to re-assess risk factors of S. japonicum transmission over the course of control and to adjust accordingly control measures in the communities.

【 授权许可】

   
2013 Zhou et al.; licensee BioMed Central Ltd.

【 图 表 】

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