摘要
目的 分析2016—2021年四川省土源性线虫病流行趋势和时空分布特征,为制定四川省土源性线虫病消除策略提供参考依据。方法 收集2016—2021年四川省土源性线虫病监测资料,分析其流行趋势;绘制土源性线虫感染率分布特征图并分析其空间分布特征,采用全局和局部空间自相关分析探索土源性线虫感染率空间聚集性。结果 2016—2021年四川省土源性线虫感染率随时间推移逐渐下降(χ~2=400.24,P <0.01)。全局空间自相关分析发现,四川省土源性线虫(Moran’s I=0.322,Z=16.293,P <0.01)、钩虫(Moran’s I=0.425,Z=21.290,P <0.01)、蛔虫(Moran’s I=0.102,Z=5.782,P <0.01)、鞭虫(Moran’s I=0.084,Z=6.873,P <0.01)感染率均存在正向空间自相关。局部空间自相关分析发现,四川省土源性线虫感染率“高-高”聚集区域主要分布于37个县(市、区),其中钩虫、蛔虫、鞭虫感染率“高-高”聚集区域分别主要分布在盆周山地区和丘陵地区的39个县(市、区)、川西南山地区的9个县(市、区)和川西南山地区的8个县(市、区)。结论 2016—2021年四川省土源性线虫感染率随时间推移逐渐下降,呈空间聚集性,应根据土源性线虫病流行特征加强重点地区防控工作。
ObjectiveTo investigate the trends in the prevalence of soil-transmitted nematode infections and the spatio-temporal distribution characteristics of soil-transmitted nematodiasis in Sichuan Province from 2016 to 2021, so as to provide the evidence for formulating the soil-transmitted nematodiasis elimination strategy in Sichuan Province.MethodsThe soil-transmitted nematodiasis surveillance data in Sichuan Province from 2016 to 2021 were collected, and the epidemic trend of soil-transmitted nematode infections was identified. The distribution maps of soil-transmitted nematode infections in Sichuan Province were plotted to identify their spatial distribution characteristics. In addition, the spatial clusters of soil-transmitted nematode infections were detected using globa and local spatial autocorrelation analyses.ResultsThe prevalence of soil-transmitted nematode infections appeared a decline with time in Sichuan Province from 2016 to 2021(χ~2= 400.24, P < 0.01). Global spatial autocorrelation analysis identified positive spatial autocorrelations in the prevalence of soil-transmitted nematode infections(Moran’s I = 0.322,Z = 16.293, P < 0.01), hookworm infections(Moran’s I = 0.425, Z = 21.290, P < 0.01), Ascaris lumbricoides infections(Moran’s I =0.102, Z = 5.782, P < 0.01) and Trichuris trichiura infections(Moran’s I = 0.084, Z = 6.873, P < 0.01). Local spatial autocorrelation analysis showed that the high-high clusters of soil-transmitted nematode infections were mainly located in 37 counties(cities,districts) of Sichuan Province, and the high-high clusters of hookworm, A. lumbricoides and T. trichiura infections were mainly identified in 39 counties(cities, districts) in mountainous areas around Sichuan Basin and hilly areas, 9 counties(cities, districts)in mountainous areas in southwestern Sichuan Province, and 8 counties(cities, districts) in mountainous areas in southwestern Sichuan Province, respectively.Conclusions wards a decline in Sichuan Province from 2016 to 2021, which showed spatial clusters. The management of soil-transmitted nematodiasis requires to be reinforcedin high-riskareasof Sichuan Province with adaptations to local epidemiologicalfeatures.
作者
吴小红
田洪春
罗静雯
铁磊
张丽萍
邓秀
刘阳
WU Xiao-hong;TIAN Hong-chun;LUO Jing-wen;TIE Lei;ZHANG Li-ping;DENG Xiu;LIU Yang(Sichuan Provincial Center for Disease Control and Prevention,Chengdu,Sichuan 610041,China)
出处
《中国血吸虫病防治杂志》
CAS
CSCD
北大核心
2022年第5期484-492,共9页
Chinese Journal of Schistosomiasis Control
基金
美国国立卫生研究院资助项目(1R21AI115288-01A1)。
关键词
土源性线虫病
时空分布
流行趋势
四川省
Soil-transmitted nematodiasis
Spatio-temporal distribution
Epidemic trend
Sichuan Province
