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.

在3个东南亚国家的4个地区进行了一项生态调查，该地区具有不同的自然和社会经济环境，以评估影响媒介蚊子和蚊子传染病的环境因素。保存的森林受到了AN的影响。高密度的最小值，并导致泰国北部的疟疾流行。在伦波克岛，印度尼西亚疟疾在山区村庄的流行也比沿海村庄更为严重。首先在黑暗森林中出没的主要媒介蚊子被证实为一个。 balabacensis。该物种是强烈的拟人化，外界的，傍晚的夜晚表明，仅将床网用来睡觉是不完美的，无法避免有疟疾传播风险的叮咬。将具有高挥发性树脂网的新型拟除虫毒的驱除作为额外的控制工具。每个室外阶段有两个网（约6M^2）可以保护人类诱饵不咬3个月。在越南的Binphuc省，另一个山区，主要矢量是。 DIRUS。疟疾患者和AN的空间分布。 DIRUS既是聚集的，但是这两个参数的重点非常低。对日本脑炎的流行病学调查及其在河内附近的一个乡村乡村进行的载体蚊子，越南透露，Culex Gelidus是比以前所考虑的更重要的矢量。该研究还从蚊子中检测到一种名为Namdinh病毒的新病毒，患者表现出日本脑炎等症状。

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.

Difference in the larval susceptibility to pyriproxyfen in nine colonies of six vector mosquito species.

六种媒介蚊子的九个群体中幼虫对吡丙醚敏感性的差异。

• 发表时间: 2003
• 期刊: Medical Entomology and Zoology. 54・2
• 作者: Satho T.;Tsuda Y.;Somboon P.;Kawada H.;Takagi M
• 通讯作者: Takagi M

Survival and debelopment of larvae of three tropical malaria vectors (Diptera : Culicidae) under a seasonally changing temperature condition in Nagasaki, Japan

日本长崎季节变化温度条件下三种热带疟疾媒介（双翅目：蚊科）幼虫的生存和发育

• 发表时间: 2003
• 期刊: Medical Entomology and Zoology. 54・4
• 作者: Xi-Min Hu;Tsuda Y.;Takagi M.
• 通讯作者: Takagi M.