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Morphometric discrimination between females of two isomorphic sand fly species, Phlebotomus caucasicus and Phlebotomus mongolensis(Diptera:Phlebotominae) in endemic and non-endemic foci of zoonotic cutaneous leishmaniasis in Iran

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Asian Pacific Journal of Tropical Medicine 2019年第4期12卷 153-162页

作者： Azad Absavaran Mehdi Mohebali vahideh moin-vaziri Alireza Zahraei-Ramazani Amir Ahmad Akhavan Fariba Mozaffarian Sayena Rafizadeh Yavar Rassi Department of Medical Entomology and Vector control School of Public Health Tehran University of Medical Sciences Department of Medical Parasitology and Mycology School of Public Health Tehran University of Medical Sciences Department of Medical Parasitology and Mycology School of Medicine Shahid Beheshti University of Medical Sciences Insect Taxonomy Research Department Iranian Research Institute of Plant Protection Ministry of Health and Medical Education

Objective: To delineate reliable morphological characteristics for identifying and separating female Phlebotomus caucasicus and Phlebotomus mongolensis which exist sympatrically in the main foci of zoonotic cutaneous leishmaniasis in ***: Sand flies were collected using sticky trap papers from active colonies of rodent burrows installed from 16 catching sites. Morphometric measurements were analyzed of 87 Phlebotomus caucasicus and 156 Phlebotomus mongolensis. Univariate and multivariate analysis were carried out to determine significant morphometric variables for discrimination of the two species. Finally, seven morphological characteristics of 65 female Phlebotomus caucasicus and 124 female Phlebotomus mongolensis were ***: Univariate and multivariate analyses of 10 morphometric variables via Discriminant Function Analysis(DFA) and Principal Component Analysis(PCA) showed that five morphometric variables had an accuracy of 100% for discriminating female Phlebotomus caucasicus and Phlebotomus mongolensis. Moreover, PCA revealed that the five morphometric variables with the highest loadings separated these two species. Morphological studies on antennal flagellum(and its associated structures) and mouth-parts of female specimens demonstrated significant differences in several ***: The results show that morphological and morphometrical features can be used to discriminate two female isomorphic species, Phlebotomus caucasicus and Phlebotomus mongolensis accurately.

关键词： Leishmaniasis Phlebotomus caucasicus Phlebotomus mongolensis Morphometry Discriminant Functional Analysis Principal Component Analysis Iran

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Visceral leishmaniasis among children in an endemic area of northwestern Iran between 2016 and 2017: An epidemiological study

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Asian Pacific Journal of Tropical Medicine 2019年第7期12卷 306-314页

作者： Hamed Behniafar vahideh moin-vaziri Mehdi Mohebali Seyyed Javad Seyyed Tabaei Zabih Zarei Elham Kazemirad Behnaz Akhoundi Mohammad Kazem Saharifi-Yazdi Alireza Zahraei-Ramazani Department of Parasitology&Mycology School of MedicineStudent Research CommitteeShahid Beheshti University of Medical SciencesTehranIran Department of Parasitology&Mycology School of MedicineShahid Beheshti University of Medical SciencesTehranIran Department of Medical Parasitology&Mycology School of Public HealthTehran University of Medical SciencesTehranIran Center for Research of Endemic Parasites of Iran Tehran University of Medical SciencesTehranIran Meshkin-Shahr Research Station National Institute of Health ResearchTehran University of Medical SciencesArdabilIran Zoonosis Research Center Tehran University of Medical SciencesTehranIran Department of Medical Entomology and Vector Control School of Public HealthTehran University of Medical SciencesTehranIran

Objective: To clarify the epidemiological aspects of visceral leishmaniasis in Kaleybar and Khoda-Afarin districts, north-west of ***: A total of 1 420 human(children under 12 years) samples, 101 domestic dogs samples(Canis familiaris), and 577 female sand fly samples were collected. Sera of human and dogs were tested using the direct agglutination test, and sand flies were identified at species level using the microscopic method. Furthermore, a structured questionnaire was applied to evaluate the correlation between the potential risk factors and the related clinical signs/symptoms with the human and dogs’ ***: Totally, 2.18% of human samples were positive at titers≥1: 800;among them, 13 cases(41.94%) were above 1:3 200, and clinical symptoms were observed in all of them except for an 11-year old girl. Anti-Leishmania infantum antibodies were found at titer≥1: 320 in 9.90% of dogs’ samples, half of them had at least one sign of canine visceral leishmaniasis. Moreover, 10 Phlebotomus species were identified in the study areas, and Phlebotomus(Larroussius) major group was the predominant species. There are significant correlations between the presence of anti-Leishmania infantum antibodies and the fever(P<0.001), anemia(P=0.001) and weight loss(P=0.016) in children. On the other hand, significant correlations were revealed between the Leishmania infection and the shelter(P=0.039), cutaneous lesion(P=0.005), lymphadenopathy(P=0.001) and weight loss(P<0.001) in the infected ***: Visceral Leishmania infection is prevalent in rural areas of Kaleybar and KhodaAfar districts located in East-Azerbaijan province, therefore active detection and treatment of visceral leishmaniasis cases should not be neglected.

关键词： Visceral leishmaniasis Human Domestic dog Seroprevalence Risk factor Phlebotomus

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