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題名 | Surveillance for Dengue Fever Vectors Using Ovitraps at Kaohsiung and Tainan in Taiwan=以誘卵器監測高雄市及臺南市的登革熱之病媒蚊 |
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作者 | 何兆美; 馮建中; 楊正大; 林明薇; 鄧華真; 賴明和; 林鼎翔; 徐爾烈; 吳淑靜; 白秀華; 殷之銘; | 書刊名 | 臺灣昆蟲 |
卷期 | 25:3 民94.09 |
頁次 | 頁159-174 |
分類號 | 387.795 |
關鍵詞 | 埃及斑蚊; 白線斑蚊; 誘卵器; 布氏指數; 登革熱病例; Aedes aegypti; Ae. alboptictus; Ovitrap index; Breteau index; DF/DHF cases; |
語文 | 英文(English) |
中文摘要 | 自1987年,台灣地區監測登革熱病媒蚊的密度等級多根據布氏指數(Breteau index)。由於衛生及環保單位的努力宣導推動清除孳生源與民眾的配合,2002年調查的布氏指數的級數並不高,但在高雄及屏東地區仍然發生登革熱的大流行。此年的四月至十二月在台南市及高雄市的三民區,前鎮區及小港區布設誘卵器,定期定點地進行病媒蚊的監測,發現所放置的誘卵器中平均有46%有病媒蚊產卵,如將它視為容器指數,其病媒密度的級數已達九級,比同一時期的布氏指數所推估的三級為高。由於誘卵器中的病媒蚊以埃及斑蚊佔優勢,以誘卵器中得到的埃及斑蚊的數量與高雄市同一時期此三區所發生的登革熱的病例數進行相關性分析,其相關係數可達0.61,分析結果也顯示2002年的平均氣溫及降雨與病媒蚊的增減無直接的相關性。根據此一調查,可以証明當布氏指數偏低時,設置誘卵器進行常規性的監測,不但能靈敏地偵測出病媒蚊的消長情況,同時可提供評估防治成效的具體資料。 |
英文摘要 | We used ovitraps, set out weekly, to monitor for Aedes aegypti and Aedes albopictus at Tainan and Kaohsiung, Taiwan, in 2002. The average proportion of ovitraps with mosquitoes - the ovitrap index (OI) was 46% in those two cities. If this value is considered as a container index, the vector density would be at level 9 in terms of Ae. aegypti density, which is much higher than that estimated by the Breteau index. The average egg number of Aedes sp. also could be estimated based on the OI with the formula developed by the general model. Our data from those areas tested revealed that the OI is a more sensitive index for detecting the presence of Aedes than the Breteau index. They also showed that Ae. aegypti was a dominant species in Tainan and Kaohsiung most of the time in 2002. Analyses revealed that weekly cases of Dengue fever (DF) and Dengue hemorrhagic fever (DHF) were correlated with the number of adult female Ae. aegypti collected from three studied sub-areas of Kaohsiung with the correlation coefficient of 0.62 in 2002. Our survey also indicated that air temperature and precipitation are not directly related to increases of mosquitoes in ovitraps. Thus, under circumstances where the Breteau index is low, the ovitrap method should be applied as an additional surveillance tool to evaluate the risk of human dengue infection, and the need for mosquito vector control. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。