Cutaneous leishmaniasis Situation and Predicting the Distribution of Phlebotomus papatasi and Phlebotomus sergenti (Diptera: Psychodidae) as vectors of leishmaniasis in a New Focus, Ardabil Province, Iran

Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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DCME02_087

تاریخ نمایه سازی: 19 آذر 1398

Abstract:

Background: Cutaneous leishmaniosis (CL) is one of the most common form of leishmaniasis. The disease is transmitted by some species of sand flies. CL caused by L. major and L. tropica is endemic in 17 of Iran provinces.Objectives: The objectives of this study was to study the situation of CL in Ardabil Province, Iran and predict the distribution of Phlebotomus papatasi and Phlebotomus sergenti (Diptera: Psychodidae) as vectors of CL in the region.Materials and Methods: In this cross-sectional study, data of CL were collected from local health centers in all of counties of Ardabil Province, Iran during 2006–2018 to establish a geodatabase using ArcGIS10.3. A total of 20 CL cases were selected randomly and skin samples were collected and analyzed by PCR method. Spatial distribution of sand flies as vector of CL was carried out using ArcMap Analyst. MaxEnt3.3.3 model was used to determine ecologically suitable niches for the main vectors.Results: A total, 309 CL human cases were reported in Ardabil province during the study period. The highest incidence rate of disease was occurred in Bilasavar, (37/100,000) and Germi (35/100,000). Totally, 2,794 sand flies were collected during May to October 2018. Identification results showed that 40% of the collected sand flies were belong to the tow phlebotomus and paraphlebotomus subgenus and six other species were also identified. The environmental suitability habitat for Ph. papatasi and Ph. sergenti were predicted to be presence in northern and central parts of Ardabil province. The most important variable that contributed ratio in the modeling were Isothermality and slope factors.Conclusion: Ardabil province is possibly is an endemic area for CL. The present of Ph. papatasi and Ph. sergenti in the region justifies local transmission while the vectors of CL are exist in the in northern and central parts of the province.

Authors

Ali Khamesiour

Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran

Behnam Mohammadi-ghalehbin

Research Center for Zoonoses, Parasitic and Microbial Diseases, Ardabil University of Medical Sciences mArdabil,Iran

Yavar Rasii

Department of Medical Entomology and Vector Borne Diseases , School Of Public Health,Tehran University of Medical Sciences ,Tehran ,Iran

Eslam Moradi-Asl

Department of Public Health, School Of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran