The Potential of West Nile Virus Transmission Regarding the Environmental Factors Using Geographic Information System (GIS), West Azerbaijan Province, Iran

  • Mojtaba Amini Department of Medical Entomology and Vector Control, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
  • Ahmad Ali Hanafi-Bojd Department of Medical Entomology and Vector Control, School of Public Health, Tehran Universi-ty of Medical Sciences, Tehran, Iran
  • Sayyad Asghari Department of Geography, School of Humanities, University of Mohaghegh Ardabili, Ardabil, Iran
  • Ali Reza Chavshin Department of Medical Entomology and Vector Control, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran, Social Determinants of Health Research Center, Urmia University of Medical Sciences, Urmia, Iran
Keywords: Mosquitoes; Aedes caspius; Culex pipiens; Iran


Background: West Nile fever, as an expanding zoonotic disease, has been reported from different creatures involved in the disease from Iran. In addition to biological mosquito-associated factors, various elements such as their activi­ties, distribution, behavior and vectorial capacity could be affected by environmental factors. We determined the dis­tribution of West Nile virus (WNV) vectors, the environmental factors affecting WNV transmission and the high-risk areas across West Azerbaijan Province (Northwestern Iran), regarding the potential of WNV transmission using Ge­ographical Information System (GIS).Methods: Mosquitoes’ larvae and adults were collected from different habitats of the province in 2015 and identified using standard morphological keys. The data regarding the distribution of mosquitoes across the studied area were organized in ArcMap databases. Inverse Distance Weighted (IDW) interpolation analysis was conducted on the data of synoptic stations to find climatic variables in the collection sites of different mosquito species. Layers of transmis­sion-related environmental factors were categorized and weighed based on their effects on disease transmission.Results: Overall, 2813 samples of different mosquito species from different regions of the province were collected and identified. According to the GIS analysis, areas in the northeastern province, which have lower altitudes and slopes with higher temperatures and more water bodies, were found to have better condition for the activity of mos­quitoes (as high-risk areas: hot spots).Conclusion: The precision of our results was proven to be in line with previous study results that identified high-risk areas, where WNV-infected vectors were captured from these same areas.


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How to Cite
Amini M, Hanafi-Bojd AA, Asghari S, Chavshin AR. The Potential of West Nile Virus Transmission Regarding the Environmental Factors Using Geographic Information System (GIS), West Azerbaijan Province, Iran. J Arthropod Borne Dis. 13(1):27.
Original Article