title: Identification of Essential Containers for Aedes Larval Breeding to Control Dengue in Dhaka, Bangladesh.
abstract: Dengue fever (DF), one of the most important emerging arboviral diseases, is transmitted through the bite of container breeding mosquitoes Aedes aegypti and Aedes albopictus. A household entomological survey was conducted in Dhaka from August through October 2000 to inspect water-holding containers in indoor, outdoor, and rooftop locations for Aedes larvae. The objective of this study was to determine mosquito productivity of each container type and to identify some risk factors of households infested with Aedes larvae. Of 9,222 households inspected, 1,306 (14.2%) were positive for Aedes larvae. Of 38,777 wet containers examined, 2,272 (5.8%) were infested with Aedes larvae. Containers used to hold water, such as earthen jars, tanks, and drums were the most common containers for larval breeding. Tires in outdoor and rooftop locations of the households were also important for larval breeding. Although present in abundance, buckets were of less importance. Factors such as independent household, presence of a water storage system in the house, and fully/partly shaded outdoors were found to be significantly associated with household infestation of Aedes larvae. Identification and subsequent elimination of the most productive containers in a given area may potentially reduce mosquito density to below a level at which dengue transmission may be halted.
authors: Department of Clinical Trial and Clinical Epidemiology, Graduate School of Comprehensive Human Science, University of Tsukuba , Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan.
authors: Farhana
authors: F
authors: Ferdousi
authors: Department of Epidemiology and Clinical Research, Research Institute of Tuberculosis , Tokyo 204-8533, Japan.
authors: Shoji
authors: S
authors: Yoshimatsu
authors: Department of Clinical Trial and Clinical Epidemiology, Faculty of Medicine, University of Tsukuba , Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan.
authors: Enbo
authors: E
authors: Ma
authors: Department of Clinical Epidemiology and Biostatistics, McMaster University , Hamilton, Ontario, Canada.
authors: Nazmul
authors: N
authors: Sohel
authors: Department of Clinical Trial and Clinical Epidemiology, Faculty of Medicine, University of Tsukuba , Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan.
authors: Yukiko
authors: Y
authors: Wagatsuma
keywords: Aedes larvae; Bangladesh; Dengue; breeding site; key container