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Phenology and population dynamics of sand flies in a new focus of visceral leishmaniasis in Eastern Azarbaijan Province,North western of Iran

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Asian Pacific Journal of Tropical Medicine 2011年第8期4卷 604-609页

作者： Teimour Hazratian Yavar Rassi Mohammad Ali Oshaghi Mohammad Reza Yaghoobi-Ershadi esmael fallah Mohammad Reza Shirzadi Sina Rafizadeh Department of Medical Entomology and Vector Control School of Public HeallhTehran University of Medical SciencesTehranIran Department of Parasitology School of MedicineMedical Science/University of TabrizIran Zoonosis Department Ministry of Health& Medical Education Violence and Injury Prevention Safety Promotion Office Emergency Management CenterMinistry of Health & Medical Education

Objective:To investigate species composition,density,accumulated degree-day and diversity of sand flies during April to October 2010 in Azarshahr district,a new focus of visceral leishmaniasis in north western ***:Sand flies were collected using sticky traps biweekly and were stored in 96%*** specimens were mounted in Puri’s medium for species identification using valid keys of *** density was calculated by the formula: number of specimens/m of sticky traps and number of specimens/ number of ***-day was calculated as follows:(Maximum temperature + Minimum temperature)/2—Minimum *** indices of the collected sand flies within different villages were estimated by the Shannon- weaver formula(H’=sum form(i=1) to s Pi log_e Pi ).Results:Totally 5 557 specimens comprising 16 Species(14 Phlebotomus,and 2 Sergentomyia) were *** activity of the species extended from April to *** sand-flies in resting places were Phlebotomus papatasi, Phlebotomus sergenti and Phlebotomus *** monthly average density was 37.***.41.1, 40.23,30.38 and 30.67 for Almalodash,Jaragil,Segaiesh,Amirdizaj and Germezgol villages, *** degree-day from early January to late May was approximately 289 degree *** minimum threshold temperature for calculating of accumulated degree-day was 17.32℃.According on the Shannon-weaver(H’),diversity of sand flies within area study were estimated as 0.917,1.867,1.339,1.673,and 1.562 in Almalodash,Jaragil,Segaiesh,Amirdizaj and Germezgol villages,***:This study is the first detailed research in terms of species composition,density,accumulated degree-day and diversity of sand flies in an endemic focus of visceral leishamaniasis in Azarshahr *** population dynamics of sand flies in Azarshahr district were greatly affected by climatic *** to this study the highest activity of the collected sand fly species occurs at the ter

关键词： Sand fly Visceral leishmaniasis Diversity Degree day Density Iran

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