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目的了解湖北省江陵县血吸虫病疫情的时空分布特征,识别风险区域,为湖沼型流行区在传播控制阶段防治血吸虫病提供科学依据。方法收集2009-2013年江陵县的血吸虫病疫情资料,结合空间位置信息构建数据库,进行空间分析。结果江陵县血吸虫病居民感染率由2009年的2.15%下降至2013年的0.63%,疫情降至历史最低水平。空间分析结果显示居民血吸虫感染率在空间分布上具有聚集性,在不同年份全局空间自相关指标Moran’s I值具有统计学意义。Sa TScan和Fle XScan两种时空扫描分析方法分别探测出18个和35个聚集区域。结论湖北省江陵县2009-2013年血吸虫病居民感染率呈逐年稳中下降趋势,疫情存在空间聚集性,可根据血吸虫病疫情空间分布特征因地制宜采取防控策略和措施。
Objective To understand the spatiotemporal distribution of schistosomiasis in Jiangling County, Hubei Province, identify the risk areas and provide a scientific basis for the prevention and control of schistosomiasis in the transmission control phase of the lake marsh. Methods The epidemic data of schistosomiasis in Jiangling County from 2009 to 2013 were collected, and the spatial database was constructed based on the spatial location information for spatial analysis. Results The infection rate of schistosomiasis residents in Jiangling County dropped from 2.15% in 2009 to 0.63% in 2013, and the epidemic rate dropped to the lowest level in history. Spatial analysis showed that the infection rate of residents was clustered in spatial distribution, and the Moran’s I value of global spatial autocorrelation in different years was statistically significant. Sa TScan and Fle XScan two spatiotemporal scan analysis methods were detected 18 and 35 aggregation area. Conclusion The infection rate of schistosomiasis residents in Jiangling County, Hubei Province, decreased steadily year by year from 2009 to 2013, and there was spatial aggregation of the epidemic. According to the spatial distribution characteristics of schistosomiasis epidemic situation, prevention and control strategies and measures were taken.