移民建镇对血吸虫病传播影响的研究

中国寄生虫学与寄生虫病杂志 ›› 2008, Vol. 26 ›› Issue (1): 4-20.

移民建镇对血吸虫病传播影响的研究

吴晓华1, 张世清2 *, 汪天平2, 许静1, 周晓农1, 王汝波1, 郑江1

1 中国疾病预防控制中心寄生虫病预防控制所, 世界卫生组织疟疾、血吸虫病和丝虫病合作中心, 上海 200025; 2 安徽省血吸虫病防治研究所, 芜湖 241000

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-02-28 发布日期:2008-02-28
通讯作者: 张世清

Schistosomiasis Transmission in Areas Where Inhabitants Migrated from Outside Embankment to New Settlement

WU Xiao-hua1, ZHANG Shi-qing2 *, WANG Tian-ping2, XU Jing1,
ZHOU Xiao-nong1, WANG Ru-bo1, ZHENG Jiang1

1 National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasia, Shanghai 200025, China; 2 Anhui Institute of Schistosomiasis Control, Wuhu 241000, China

Received:1900-01-01 Revised:1900-01-01 Online:2008-02-28 Published:2008-02-28
Contact: ZHANG Shi-qing

摘要/Abstract

摘要： 目的观察移民建镇对血吸虫病传播的影响。方法 2002-2005年在安徽省选择将居民迁往新建居住地但仍回原地耕种的单退点, 以及居民彻底放弃原耕地、迁往新居的双退点各2个, 采用常规查螺、查病和访谈调查, 比较移民建镇后血吸虫病传播相关因素的变化情况。结果移民建镇后, 单退点陈桥洲和清节洲2005年感染螺密度分别较2002年下降79.10％和45.18％, 钉螺感染率分别下降75.46%和84.88% (P＜0.01); 双退点江洲村和小黄洲2005年感染螺密度分别较2002年下降100％和74.87％, 钉螺感染率分别下降100%和40.00%, 但差异无统计学意义(P＞0.05)。野粪密度和阳性率均以单退点为高, 双退点野粪密度及阳性率呈逐年下降趋势, 2005年未发现阳性野粪。单退点居民感染率在2002-2005年间波动不大, 双退点居民感染率呈逐年下降趋势。单退点耕牛感染率较高, 双退点耕牛逐步减少, 至2005年已淘汰全部耕牛。结论单退点血吸虫病流行因素未发生明显改变。双退点流行因素发生明显改变, 血吸虫病疫情得到有效控制。

关键词: 移民建镇, 血吸虫病, 传播

Abstract: Objective To observe the impact on the transmission of schistosomiasis in areas where the local inhabitants migrated from outside embankment to new settlements. Methods Two villages (Chenqiao and Qingjie) where the inhabitants had moved out and another 2 villages (Jiangzhou and Xiaohuang) disused for both inhabitants and cultivated land were selected for the investigation. Data on prevalence in human and domestic animals, and Oncomelania snail habitats, were collected. Results After moving from outside embankment to new settlements, the density of infested snails in Chenqiao and Qingjie decreased by 79.1% and 45.2% in 2005 compared with that in 2002, and the infection rate of snails decreased by 75.5% and 84.9%, respectively(P＜0.01). In Jiangzhou and Xiaohuang, the density of infested snails decreased by 100% and 74. 9% in 2005 compared with that in 2002, and the infection rate of snails decreased by 100% and 40.0%, respectively (P＞0.05). In villages that only disused for inhabitants, the density and egg-positive rate of feces collected from the wild were higher than the other 2 villages. However, in villages disused for both inhabitants and cultivated land, the density and egg-positive rate of wild feces decreased gradually and no egg-positive feces was found in 2005. The prevalence of schistosomiasis in humans in villages disused only for inhabitants changed slightly from 2002 to 2005, but decreased gradually in villages disused for both inhabitants and cultivated land. Higher prevalence in cattle was found in villages disused only for inhabitants. Number of cattle reduced yearly and no cattle left in villages disused for both inhabitants and cultivated land in 2005. Conclusion No significant change on the factors of schistosomiasis transmission has been found in villages disused only for inhabitants, but the transmission has been effectively controlled in villages disused for both inhabitants and cultivated land.

Key words: Migration to new settlement, Schistosomiasis, Transmission

吴晓华;张世清;汪天平;许静;周晓农;王汝波;郑江. 移民建镇对血吸虫病传播影响的研究[J]. 中国寄生虫学与寄生虫病杂志, 2008, 26(1): 4-20.

WUXiao-hua;ZHANGShi-qing*;WANGTian-ping;XUJing;ZHOUXiao-nong;WANGRu-bo;ZHENGJiang. Schistosomiasis Transmission in Areas Where Inhabitants Migrated from Outside Embankment to New Settlement[J]. Chinese Journal of Parasitology and Parasitic Diseases, 2008, 26(1): 4-20.

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