The Effect of Geographical and Climatic Factors on the distribution of Phlebotomus papatasi in an endemic foci of Zoonotic Cutaneous Leishmaniasis in Iran

Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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DCME02_162

تاریخ نمایه سازی: 19 آذر 1398

Abstract:

Background: Phlebotomus papatasi is known as main vector of Zoonotic Cutaneous Leishmaniasis in Iran. Objectives: This study was aimed to investigate the effect of Geographical and Bioclimatic factors on the distribution of Ph. Papatasi.Materials and Methods: a total of 34 villages from Golestan Province were selected, and sampling was performed three times using 120 sticky traps in each selected village. All collected species were mounted and distinguished. The densities of Ph. papatasi in all villages was extracted and interred into ArcMap as a point layer. Required bioclimatic and environmental variables were extracted from Global Climate Database and NDVI obtained from Moddis Satellite imagery and entered into ArcMap as a raster layer and by using spatial analyst tools and value to point submenu, the numerical value of each independent variable in the cell where the selected village is located in this, was extracted. All data were finally entered into IBM SPSS and relationship between the numbers of collected Ph. papatasi with the independent variables was examined using Spearman correlation test.Results: In this study, a total of 1773 Ph. papatasi were collected. The findings of this study show that the max temperature of warmest month (˚C), Temperature annual range (BIO5-BIO6) (˚C), temperature seasonality (±SD×100), mean diurnal range (average min/max temp) (˚C), precipitation seasonality (coefficient of variation), mean temperature of driest quarter (˚C), and mean temperature of warmest quarter (˚C) were positively associated with the densities of Ph. papatasiConclusion: Air temperature, vegetation density and precipitation were shown as the most important factors in the distribution of Ph. papatasi.

Authors

Hosseini Seyed Hamid

Infectious Disease Research Center, Golestan University of Medical Sciences, Gorgan, Iran

Aiuob Sofizadeh

Infectious Disease Research Center, Golestan University of Medical Sciences, Gorgan, Iran

Ehsan Allah Kalteh

PhD Student of Health Education and Health Promotion, Vector borne Diseases Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran ..PhD Student of Health Education and Health Promotion, School of Health, Tehran University of Medica