本文關(guān)鍵詞：中老邊境地區(qū)江城縣登革熱媒介及病毒感染調(diào)查　出處：《中國人獸共患病學(xué)報》2016年09期 　論文類型：期刊論文

  更多相關(guān)文章： 蚊蟲 白紋伊蚊 登革熱媒介 登革病毒 中老邊境

【摘要】：目的了解中老邊境江城縣登革熱媒介的種群密度、孳生習(xí)性以及登革病毒自然感染情況,為邊境登革熱的防控提供參考。方法 2015年6-10月在中老邊境江城縣選擇3個自然村作為固定監(jiān)測點,采用人誘捕法誘捕白天成蚊,同時在監(jiān)測點居民區(qū)進(jìn)行幼蟲密度和孳生習(xí)性調(diào)查。捕獲的成蚊用液氮低溫保存帶回實驗室用RT-PCR進(jìn)行登革病毒檢測。結(jié)果白天人誘法共捕獲7屬20種2 247只成蚊,其中白紋伊蚊1 405只,占捕獲總數(shù)的62.53%,其次為騷擾阿蚊438只,占捕獲總數(shù)的19.49%,未捕到埃及伊蚊,白紋伊蚊成蚊平均密度為16.7只/人工小時;白紋伊蚊幼蟲的平均房屋指數(shù)、布雷圖指數(shù)、容器指數(shù)和千人指數(shù)分別為12.0、18.3、2.2和25.4。8、9月是白紋伊蚊孳生和活動的高峰;白蚊伊紋幼蟲以輪胎、罐子和竹筒為主要孳生容器,3種容器占總陽性容器數(shù)比例分別為26.3%、23.4%和20.4%;人誘法捕獲成蚊RT-PCR檢測37組蚊蟲,黃病毒屬陽性17組,批陽性率為46.0%,未檢出登革病毒。結(jié)論中老邊境江城縣登革熱傳播媒介白紋伊蚊密度較高且分布廣,蚊蟲攜帶黃病毒屬病毒比例高,應(yīng)加強當(dāng)?shù)氐歉餆岜O(jiān)測工作。
[Abstract]:Objective to investigate the population density, breeding habit and natural infection of dengue virus in Jiangcheng County, the border of China and Laos. Methods from June to October, 2015, three natural villages were selected as fixed monitoring points in Jiangcheng County, China's border, to trap adult mosquitoes during the day by human trapping. Meanwhile, larval density and breeding habits were investigated in residential areas. The captured adult mosquitoes were stored in liquid nitrogen and brought back to the laboratory for dengue virus detection with RT-PCR. Results during the day, 20 genera of 7 genera were captured by human inducement. Species 2. 247 adult mosquitoes. Among them, 1 405 Aedes albopictus, accounting for 62.53% of the total captured, followed by Aedes harms 438, accounting for 19.49% of the total catch, no Aedes aegypti was captured. The average density of adult mosquitoes of Aedes albopictus was 16.7 / h; The average house index, Braintu index, container index and 1000 person index of Aedes albopictus larvae were 12.0 and 25.4.8, respectively. In September, Aedes albopictus breeding and activity peak; The percentage of positive containers for the larvae of Aedes albopictus were 26.323.4% and 20.4% respectively. The main breeding containers were tire, jar and bamboo tube. 37 groups of mosquitoes were detected by RT-PCR, 17 of which were positive for yellow virus, and the positive rate of batches was 46.0%. Conclusion the dengue vector Aedes albopictus has a high density and is widely distributed in Jiangcheng County, China, and the proportion of mosquitoes carrying yellow virus is high, so the local surveillance of dengue fever should be strengthened.
【作者單位】： 云南省蟲媒傳染病防控研究重點實驗室、云南省蟲媒病毒研究中心、云南公共衛(wèi)生與疾病防控協(xié)同創(chuàng)新中心、云南瘧疾研究中心、云南省寄生蟲病防治所;江城縣疾病預(yù)防控制中心;
【分類號】：R512.8
【正文快照】： 江城縣位于云南省南部,東南與越南接壤,南與老撾交界,邊境線長達(dá)183公里,是云南省唯一與老撾、越南兩國接壤的縣城,地理位置十分特殊和復(fù)雜。屬亞熱帶濕潤氣候,特別適合各類蚊媒孳生。云南邊境登革熱疫情形勢嚴(yán)重,2009-2014年底云南省共報告登革熱病例2 040例,其中本地感染病，

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