Chin J Schisto Control ›› 2012, Vol. 24 ›› Issue (4): 376-381.

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Engineering management mode of mollusciciding and assessment of its field application

GAO Yang1|SUN Le-ping2|ZUO Yin-ping1|HONG Qing-biao2|LIANG You-sheng2*   

  1. 1 Yangzhou Municipal Center for Disease Control and Prevention|Yangzhou 225001|China;2 Jiangsu Institute of Parasitic Diseases| Key Laboratory on Technology for Parasitic Disease Prevention and Cotnrol|Ministry of Health| China
  • Online:2012-08-15 Published:2012-08-15
  • Contact: LIANG You-sheng

药物灭螺工程化管理模式及其现场应用评价

高扬1|孙乐平2|左引萍1|洪青标2|梁幼生2*   

  1. 1江苏省扬州市疾病预防控制中心 (扬州225001); 2江苏省血吸虫病防治研究所、 卫生部寄生虫病预防与控制技术重点实验室
  • 通讯作者: 梁幼生
  • 作者简介:高扬|男|副主任医师。研究方向:血吸虫病流行病学与防治
  • 基金资助:

    国家科技支撑计划 (2009BAI78B0007、 2009BAI78B06); 国家重大科技专项 (2012ZX10004220); 江苏省卫生厅项目 (X201103)

Abstract:

Objective To establish the engineering management mode of mollusciciding,and assess its snail control effect in field application,so as to provide the effective management interventions for improving the quality of mollusciciding in the field. Methods Engineering management of mollusciciding was performed. The snail distribution was surveyed before and after snail control with molluscicides and environmental modification,and the database was established. The snail control effect of the engi? neering management mode of mollusciciding was assessed. Results Engineering management mode of mollusciciding was con? ducted in 96.27%(1 033/1 073)of the total snail habitats in 6 counties(districts)of Yangzhou City from 2006 to 2011. After the implementation of engineering management mode,the mortality of snails increased from 65.07% before implementation to 87.16% (80.65%-89.38%),and significant difference was observed( χ2 = 4 623.297,P = 0) . The reductions in occurrence rate of frames with snails and snail density and the corrected mortality of snails were 57.67% (49.27%-66.98%),76.67% (76.13%-83.66%)and 86.58%(79.89%-88.89%),respectively,which were 1.45,1.63 times and 1.37 times more than those before implementation. After the implementation of engineering management mode of mollusciciding for 3 years in Yangzhou City, all infected snails were eliminated. After 6 years of implementation,the number of settings with snails,snail areas,occurrence rate of frames with snails,means snail density decreased by 56.27%,76.40%,67.99% and 66.67%,respectively. Conclusions High?quality molluscicide is the essential factor to ensure the molluscicidal effect,and engineering management mode of mollusci? ciding is an effective approach to improve the quality of snail control with molluscicides in the field.

Key words: Oncomelania snail; Mollusciciding; Engineering management;Effect evaluation

摘要:

目的 建立药物灭螺工程化管理模式, 评价其在现场应用中的控螺效果, 为提高现场药物灭螺质量提供有效管理措施。方法 按照 “因地制宜、 科学规划、 监理负责” 的原则, 开展药物灭螺工程化管理, 调查开展药物灭螺前、 后钉螺分布并建立数据库, 比较分析药物灭螺工程化管理模式的控螺效果。结果 2006-2011年扬州市对6个县 (区) 96.27% (1 033/1 073) 的有螺环境开展药物灭螺工程化管理。实施工程化管理模式后, 药物灭螺环境钉螺死亡率由实施前的 65.07%提高到87.16% (80.65%~89.38%), 差异有统计学意义 (χ2 = 4 623.297, P = 0); 其中灭螺环境有螺框出现率下降率、钉螺密度下降率和钉螺校正死亡率分别为57.67%(49.27%~66.98%)、 76.67%(76.13%~83.66%)和86.58%(79.89%~ 88.89%), 分别是实施工程化管理模式前的1.45、 1.63倍和1.37倍。扬州市实施药物灭螺工程化管理模式3年后消灭了感染性钉螺, 6年后全市有螺条块、 钉螺面积、 有螺框出现率、 钉螺平均密度分别下降了56.27%、 76.40%、 67.99%和66.67%。结论 高质量的灭螺药品是确保药物灭螺效果的基本要素, 药物灭螺工程化管理模式是提高现场药物灭螺质量的有效管理措施。

关键词: 钉螺; 药物灭螺; 工程化管理; 效果评价

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