title: A dengue vector surveillance by human population-stratified ovitrap survey for Aedes (Diptera: Culicidae) adult and egg collections in high dengue-risk areas of Taiwan.
abstract: Aedes aegypti L. is the primary dengue vector in southern Taiwan. This article is the first report on a large-scale surveillance program to study the spatial-temporal distribution of the local Ae. aegytpi population using ovitraps stratified according to the human population in high dengue-risk areas. The sampling program was conducted for 1 yr and was based on weekly collections of eggs and adults in Kaohsiung City. In total, 10,380 ovitraps were placed in 5,190 households. Paired ovitraps, one indoors and one outdoors were used per 400 people. Three treatments in these ovitraps (paddle-shaped wooden sticks, sticky plastic, or both) were assigned by stratified random sampling to two areas (i.e., metropolitan or rural, respectively). We found that the sticky plastic alone had a higher sensitivity for detecting the occurrence of indigenous dengue cases than other treatments with time lags of up to 14 wk. The wooden paddle alone detected the oviposition of Ae. aegypti throughout the year in this study area. Furthermore, significantly more Ae. aegypti females were collected indoors than outdoors. Therefore, our survey identified the whole year oviposition activity, spatial-temporal distribution of the local Ae. aegypti population and a 14 wk lag correlation with dengue incidence to plan an effectively proactive control.
authors.affiliation: Department of Biotechnology, Tajen University, No. 20, Weisin Road, Sin-er Village, Yanpu Township, Pingtung County 907, Taiwan, ROC.
authors.forename: Huai-Hui
authors.initials: HH
authors.lastname: Wu
authors.forename: Chih-Yuan
authors.initials: CY
authors.lastname: Wang
authors.forename: Hwa-Jen
authors.initials: HJ
authors.lastname: Teng
authors.forename: Cheo
authors.initials: C
authors.lastname: Lin
authors.forename: Liang-Chen
authors.initials: LC
authors.lastname: Lu
authors.forename: Shu-Wan
authors.initials: SW
authors.lastname: Jian
authors.forename: Niann-Tai
authors.initials: NT
authors.lastname: Chang
authors.forename: Tzai-Hung
authors.initials: TH
authors.lastname: Wen
authors.forename: Jhy-Wen
authors.initials: JW
authors.lastname: Wu
authors.forename: Ding-Ping
authors.initials: DP
authors.lastname: Liu
authors.forename: Li-Jen
authors.initials: LJ
authors.lastname: Lin
authors.forename: Douglas E
authors.initials: DE
authors.lastname: Norris
authors.forename: Ho-Sheng
authors.initials: HS
authors.lastname: Wu
mesh_terms: D000330:Aedes / Q000469:parasitology / Q000502:physiology*; D000818:Animals; D003715:Dengue / Q000453:epidemiology; D003716:Dengue Virus / Q000502:physiology; D005260:Female; D006801:Humans; D015994:Incidence; D007303:Insect Vectors / Q000469:parasitology / Q000502:physiology*; D008297:Male; D009032:Mosquito Control / Q000379:methods*; D010058:Oviposition; D011156:Population Density; D012621:Seasons; D013624:Taiwan / Q000453:epidemiology