[安徽省以传染源控制为主的血吸虫病综合防治策略效果评价]

[Evaluation on the effect of comprehensive control strategy of schistosomiasis with emphasis on infection source control in Anhui province].

作者信息

Cao Zhi-Guo, Wang Tian-Ping, He Jia-Chang, Zhang Shi-Qing, Chen Geng-Xin, Zhang Gong-Hua, Wang Hao, He Zong-Gui

机构信息

Anhui Institute of Schistosomiasis Control, Hefei 230061, China.

出版信息

Zhonghua Yu Fang Yi Xue Za Zhi. 2012 Feb;46(2):114-8.

PMID:22490191

Abstract

OBJECTIVE

To evaluate the effect of comprehensive control strategy of schistosomiasis with emphasis on infection source control in Anhui province.

METHODS

Forty endemic villages in Guichi district, Chizhou city, Anhui province were selected as national pilot villages in the years from 2006 to 2008, and another 10 provincial pilot villages were respectively selected from 10 highly endemic villages in 7 cities in 2007. The comprehensive infection source control measures, including "replace cattle with machines", "raise livestock in pens", "improve the sanitary toilets", "supply safe water " and so on were carried out among the above pilot villages. At the end of 2008, 13 national pilot villages and 6 provincial pilot villages were selected to investigate the popularity of schistosomiasis, and the effect of the comprehensive control strategy in those villages were compared.

RESULTS

After implementing the comprehensive control strategy, the infectious rate of schistosomiasis in national pilot villages decreased from 4.57% (487/10 659) to 1.76% (147/8370), with the reduction rate at 61.49%, whose difference showed statistical significance (χ(2) = 115.16, P < 0.01); and the density of infected snails decreased from 0.0067/0.1 m(2) to 0.0008/0.1 m(2), the infectious rate of snails decreased from 0.28% to 0.04%, whose reduction rates were 88.06% and 85.71% respectively. While as to the provincial pilot villages, the infectious rate of schistosomiasis decreased from 1.27% (54/4254) to 0.21% (14/6592), with the reduction rate at 83.46%, whose difference showed statistical significance (χ(2) = 94.57, P < 0.01); and the density of infected snails decreased from 0.0025/0.1 m(2) to 0.0003/0.1 m(2), the infection rate of snails decreased from 0.13% to 0.05%, whose reduction rates were 88.00% and 61.54% respectively.

CONCLUSION

The comprehensive control strategy with emphasis on infection source control implemented in marshland and lake regions can effectively control the transmission of schistosomiasis.

摘要

目的

评估以传染源控制为主的血吸虫病综合防治策略在安徽省的防治效果。

方法

2006 - 2008年，选取安徽省池州市贵池区40个血吸虫病流行村作为国家级试点村，2007年从7个市的10个高流行村分别选取10个省级试点村。在上述试点村实施以“机代牛”、“家畜圈养”、“改厕”、“供水”等为主的传染源综合控制措施。2008年底，选取13个国家级试点村和6个省级试点村，调查血吸虫病流行情况，并比较综合防治策略在这些村庄的防治效果。

结果

实施综合防治策略后，国家级试点村血吸虫病感染率由4.57%（487/10659）降至1.76%（147/8370），下降率为61.49%，差异有统计学意义（χ(2)=115.16，P<0.01）；感染性钉螺密度由0.0067/0.1 m²降至0.0008/0.1 m²，钉螺感染率由0.28%降至0.04%，下降率分别为88.06%和85.71%。省级试点村血吸虫病感染率由1.27%（54/4254）降至0.21%（14/6592），下降率为83.46%，差异有统计学意义（χ(2)=94.57，P<0.01）；感染性钉螺密度由0.0025/0.1 m²降至0.0003/0.1 m²，钉螺感染率由0.13%降至0.05%，下降率分别为88.00%和61.54%。