Evaluation on environmental factors affecting to the mosquito-borne infectious diseases in Southeast Asia

东南亚蚊媒传染病环境因素影响评价

• 批准号: 14256003
• 负责人: TAKAGI Masahiro
• 金额: $ 23.05万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14256003/
• 关键词: malaria vector; Japanese encephalitis vector; dengue; DHF vector; forest; southeast Asia; rice culture; urbanizing; environmental change

An ecological survey was conducted in 4 areas in 3 southeast Asian countries with different natural and socio-economical environments to numerically evaluate environmental factors affecting to vector mosquitoes and mosquito-borne infectious diseases.Conserved forest had favored infestation by An. minimus with high density, and resulted in maintaining the malaria epidemic in northern Thailand. In Lombok island, Indonesia malaria epidemic also was more serious in mountainous villages than in coastal ones. The main vector mosquito infested in dark forests was firstly confirmed as An. balabacensis. The species was strongly anthropophagous, exophagous, and an early night biter indicating that using a bed net only for sleeping was imperfect to avoid bites with risk of malaria transmission. The repellency of a new pyrethroid with high volatility impregnated resin net was evaluated as an additional control tool. Two nets per outdoor stage (ca. 6m^2) could protect human baits from biting for 3 months. In Binphuc Province, Vietnam, another mountainous area, the main vector was An. dirus. Spatial distributions of malaria patients and An. dirus were both aggregative but the overlapping of focuses of the two parameters was quite low.An epidemiological survey on Japanese encephalitis and its vector mosquitoes conducted in a rural village near Hanoi, Vietnam revealed that Culex gelidus was more important vectors than as considered before. The study also detected a new virus named Namdinh virus from mosquito and patients showing Japanese encephalitis like symptom.

对东南亚3个国家不同自然和社会经济环境的4个地区进行了生态调查，以数值评估影响媒介蚊和蚊媒传染病的环境因素。密度极小，导致泰国北部疟疾流行持续。在印度尼西亚龙目岛，山区村庄的疟疾疫情也比沿海村庄更为严重。首次确认黑暗森林中主要传播媒介蚊为安蚊。巴拉巴森斯。该物种具有强烈的食人性、外食性和早晚叮咬性，这表明仅在睡觉时使用蚊帐并不能完美地避免被叮咬，从而带来疟疾传播的风险。作为附加控制工具，评估了具有高挥发性浸渍树脂网的新型拟除虫菊酯的排斥性。每个室外舞台两个网（约6m^2）可以防止人类诱饵被咬3个月。在越南的另一个山区宾福省，主要媒介是安氏病毒。迪鲁斯。疟疾患者和疟疾的空间分布。在越南河内附近的一个乡村对日本脑炎及其媒介蚊子进行的流行病学调查显示，白蚊库蚊是比以前认为的更重要的媒介蚊子。该研究还从蚊子和表现出日本脑炎样症状的患者中检测到了一种名为 Namdinh 病毒的新病毒。

项目成果

Malaria vector densities in transmission and non-transmission areas during 23 years and land use in Chiang Mai province, Northern Thailand.

23 年来传播和非传播地区的疟疾媒介密度以及泰国北部清迈省的土地利用情况。

• 发表时间: 2002
• 期刊: Basic and Applied Ecology 3・3
• 作者: Suwonkerd W.;Overgaard H.J.;Tsuda Y.;Prajakwong S.;Takagi M.
• 通讯作者: Takagi M.

A field evaluation study on the effects of residual spray of Bifenthrin and Deotamethrin on Anopheles minimus population in Mae Hong Son Province, northern Thailand.

联苯菊酯和除苯菊酯滞留喷雾对泰国北部夜丰颂府微小按蚊种群影响的现场评价研究。

• 发表时间: 2002
• 期刊: Japanese Journal of Tropical Medicine and Hygiene. 30・3
• 作者: Oarjakwong S.;Suwonkerd W.;Chawpron S.;Banchong A.T.;Tsuda Y.;Takagi M.
• 通讯作者: Takagi M.

Molecular variation and phylogeny of the Anopheles minimus complex (Diptera : Culicidae) inhabiting Southeast Asian countries, based on ribosomal DNA internal transcribed spacers, ITS1 and 2, and the 28SD3 sequences.

基于核糖体 DNA 内转录间隔区、ITS1 和 2 以及 28SD3 序列，栖息在东南亚国家的微小按蚊复合体（双翅目：蚊科）的分子变异和系统发育。

• 发表时间: 2003
• 期刊: Southeast Asian Journal of Tropical Medicine and Public Health. 34・4
• 作者: Sawabe K.;Takagi M.;Tsuda Y.;Tsuno N.
• 通讯作者: Tsuno N.

Different spatial Distribution of Aedes aegypti and Aedes albopictus along an urban-rural gradient and the relating environmental factors examined in three vilages in northern Thailand.

泰国北部三个村庄埃及伊蚊和白纹伊蚊沿城乡梯度的不同空间分布及相关环境因素研究。

• 发表时间: 2006
• 期刊: Journal of the American Mosquito Control Association. 22・2
• 作者: Tsuda Y.;Suwonkerd W.;Chawprom S.;Prajakwong S.;Takagi M.
• 通讯作者: Takagi M.

Malaria endemic patterns on Lombok and Sumbawa islands, Indonesia.

印度尼西亚龙目岛和松巴哇岛的疟疾流行模式。

• 发表时间: 2005
• 期刊: Tropical Medicine and Health 33・2
• 作者: Dachlan Y.P.;Yotopranoto S.;Sutanto B.V.;Santoso S.H.B.;Widodo A.S.;Kusmartisnawati;Sutanto A.;Gerudug I.K.K.;Takagi M.;Tsuda Y.;Tanabe K.;Kawamoto F.;Yoshinaga K.;Kanbara H.
• 通讯作者: Kanbara H.