Entomological surveillance and spatial distribution of mosquitoes in Northwestern Tehran city, the capital of Iran

Background: Due to the risk of transmission of Aedes-borne diseases (Dengue Fever, Chickengunia and Zika Vius), it is important to do entomological survillance in Tehran county Objectives: The objective of this study was to monitor the presence of Aedes mosquitoes at the points of entry this area.Materials and Methods: This study was carried out from March 2018 until late September 2019 after selecting fixed sampling sites. The location coordinates of the sampling sites were recorded using a Global Positioning System (GPS) device, and mapped using ArcMap 10.5 software. In this study, biological forms of mosquitoes (larvae, pupae and adults) were collected from larval habitats, 30 standard ovitraps, and reared in Aedes insectary, Department of Medical Entomology and Vector control, School of Public Health, Tehran University of Medical Sciences for species identification via morphological keys.Results: Generally, 930 larvae and adults were collected and identified as: Culex pipiens Linnaeus, Cx. theileri Theobald and Culiseta longiareolata Macquart. Culex pipiens with 75% was the most abundant speciesConclusion: This is the first mapping study in Tehran for predicting areas with the possible presence of Aedes species. A mapping study by using geographic information system along with field sampling in other areas of Tehran capital town can be conducted based on these results. Also, further and complementary mapping studies are suggested in other neighboring provinces of Tehran.

Keywords:

Spatial Distribution , Mosquitoes , Larval Habitat , Entomological surveillance , Iran