关键词: 登革热, 媒介, 埃及伊蚊

Abstract: The paper reported the survey results of dengue vectors and their distribution in Koh Kret Islet,Nonthaburi Province,Thailand in April 1997.Identification was made on 42 adult mosquitoes caught from 27 houses and 148 mosquito larvae collected from 52 positive water containers.All of them were Aedes aegypti.Larval survey was carried out in 271 houses.Of 2492 water containers,532 were positive with Aedes aegypti larvae.Among different kinds of water containers,the unmber of drinking water jars possessed the least number,accounting for 7.26% of total containers.Its positive number was 2.07% of total positive number.In nondrinking water containers,the number of jars to store water for daily use was the most,accounting for 59.33% of the total.Its positive number accounted for 44.5% of the total positive number.Different treatment measures were suggested for different kind of water containers.Applying B.t.I.H14 slow release tablets should be the major measure for daily using water jars which take the major part of water containers and whose function is to store water.However,for a few water jars which will be refilled or changed frequently,stocking larvae eating fish combining with applying B.t.I.H14 should be the major method.For water tanks in toilets as well as small water containers,viz.vases and holders,ant traps,bottles,tins,etc.,using 1% abate sand granule should be the major measure.