Abai, MR

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6th International Congress of DipterologyLong term monitoring the vector’s density as the Denguecontrol program in Liuchiu, TaiwanWu, H.-H. (1), N.-T. Chang (2) & I.-S. Yang (2)(1) Graduate Institute of Environmental Management, Tajen University, Pingtung, Taiwan,907, ROC(2) Department of Plant Protection, Nation Pingtung University of Science andTechnology, Pintung, Taiwan, 912, ROCThe results of 17 years study, from 1989 to 2005, for long term densitymonitoring and water sources reduction of Aedes mosquito in Liuchiu,Taiwan, showed that significant drop of the Breteau index from 60 to 0-2.In 1989 surveillance, the ratio of occurrence of Aedes aegypti and Ae.Albocaptius was 87.1:12.9 inside the house, and 71.4:28.6 outside thehouse, respectively. After the eradication program funded byEnvironmental Protection Administration, in 1995, the occurrence ratio ofthe Ae. aegypti, mainly found in Benfu, Chungfu and Yufu villagesdropped below 20% in 1995 and further down to 10% in 1996. The resultsof surveillance, from 2001 to 2005, indicated Ae. aegypti was only foundoutside the houses located in Benfu and Chungfu villages only, After 17-years efforts of monthly monitoring and breeding site cleaning up ofmosquitoes, the few mosquito individuals in colony collected from thefield can’t even be set up in the laboratory. The risk of Dengue caused byvector’s transmission was greatly decreased by the long term monitoringprogram. Also, in order to prevent the occurrence of the Dengue fever,cooperating with Taiwan CDC, the measure of promoting and encouragingthe volunteers in village to clean up the vector breeding sites in the denguefever breaking out areas has been conducted since 2004. The effect isexcellent by this approach, the Breteau index is keeping lower than 9 dueto the weekly activities of whole village participation for source reductionin Pingtung area. Obviously, remove the breeding sources and control themosquito larva is indeed can prevent the dengue fever. No domesticDengue disease has occurred nowadays in Liuchiu area, since 1987 whenthe Dengue outbreak severely. The successful control might be owing to308
6th International Congress of Dipterologythe efforts of long term monitoring and breeding site eradication and thuslowering the density of mosquito vectors below the critical levels.Key Words: long term monitoring, the Breteau index, breeding siteeradicatioeradication program, dengue∗∗∗∗∗∗∗∗∗∗309
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Abai, MR

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