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比较杀虫剂处理过的蚊帐和室内滞留喷洒在孟加拉国迈门辛地区控制内脏利什曼病传播媒介的效果。

Comparison of insecticide-treated nets and indoor residual spraying to control the vector of visceral leishmaniasis in Mymensingh District, Bangladesh.

机构信息

Regional Office for South-East Asia, World Health Organization, New Delhi, India.

出版信息

Am J Trop Med Hyg. 2011 May;84(5):662-7. doi: 10.4269/ajtmh.2011.10-0682.

Abstract

Integrated vector management is a pillar of the South Asian visceral leishmaniasis (VL) elimination program, but the best approach remains a matter of debate. Sand fly seasonality was determined in 40 houses sampled monthly. The impact of interventions on Phlebotomus argentipes density was tested from 2006-2007 in a cluster-randomized trial with four arms: indoor residual spraying (IRS), insecticide-treated nets (ITNs), environmental management (EVM), and no intervention. Phlebotomus argentipes density peaked in March with the highest proportion of gravid females in May. The EVM (mud plastering of wall and floor cracks) showed no impact. The IRS and ITNs were associated with a 70-80% decrease in male and female P. argentipes density up to 5 months post intervention. Vector density rebounded by 11 months post-IRS, whereas ITN-treated households continued to show significantly lower density compared with households without intervention. Our data suggest that both IRS and ITNs may help to improve VL control in Bangladesh.

摘要

综合蚊媒管理是南亚内脏利什曼病(VL)消除计划的一个支柱,但最佳方法仍存在争议。在每月抽样的 40 所房屋中确定了沙蝇季节性。从 2006 年至 2007 年,在一项有四个组的集群随机试验中测试了干预措施对中华按蚊密度的影响:室内滞留喷洒(IRS)、经杀虫剂处理的蚊帐(ITN)、环境管理(EVM)和无干预。中华按蚊密度在 3 月达到峰值,5 月有最多的怀孕雌蚊。EVM(墙壁和地板裂缝的泥灰浆)没有显示出影响。IRS 和 ITN 与干预后长达 5 个月的雄性和雌性中华按蚊密度降低 70-80%有关。蚊媒密度在 IRS 后 11 个月反弹,而使用 ITN 的家庭与未接受干预的家庭相比,密度仍然明显较低。我们的数据表明,IRS 和 ITN 都可能有助于改善孟加拉国的 VL 控制。

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