Determination of Reservoir(s) and Vector(s) of Cutaneous Leishmaniasis by Nested-PCR in Marvdasht District, Fars Province, Southern Iran

Document Type: Original Article

Authors

1 Associate Professor of Medical Entomology and Vector Control, School of Health and Health Research Institute, Tehran University of Medical Sciences, Tehran, Iran

2 Master of Science in Medical Entomology and Vector Control, School of Health & Health Research Institute, Tehran University of Medical Sciences, Tehran, Iran & Health Research Center, Kazeroon, Shiraz, Iran.

3 professor of Medical Entomology and Vector Control, School of Health & Health Research Insitute, Tehran University of Medical Sciences, Tehran, Iran

4 Associate Professor of Medical Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

5 Master of Science in Human Genetics, Tehran disease Control Center, Tehran, Iran

6 Master of Science in Medical Entomology, Kerman University of Medical Sciences, Kerman, Iran

7 Assistant professor of Medical Entomology and Vector Control, School of Health & Health Research Institute, Tehran University of Medical Sciences, Tehran, Iran

8 Master of Science in Medical Entomology, Health research Center, Kazeroon, Shiraz, Iran.

Abstract

Introduction: Cutaneous leishmaniasis (CL) is an increasing public health problem in several parts of Iran. In southern parts, the incidence of CL has been doubled over the last decade. This epidemiological study was done for determination of reservoir(s) and vector(s) of cutaneous leishmaniasis in rural regions of Marvdasht, Fars province,southern Iran during 2003 and 2004. Methods: A total of 126 rodents were collected from three villages using live traps and their Giemsa-stained smears were studied for leishmania infection. After DNA extraction from positive smears, Nested-PCR was used for the identification of parasite species. In another procedure, 200 sand flies were collected by aspirator and after species identification DNA extraction and PCR was done. Results: The collected samples included Meriones libycus (75.4%), Cricetulus migratorius (14.3%) and Microtus arualis (10.3%). Eight out of 95 Meriones libycus (8.4%) were found to be infected with Leishmania major. None of the other species were positive. Among the collected female sandflies 75% were identified to be Phlebotomus papatasi and 2.7% of them were found with L.major infection. Conclusion: Only 2.7% of Phlebotomus papatasi were found naturally infected with Leishmania major. This is the first report of detection of L.major by Nested-PCR in P.papatasi as a proven principal vector of zoonotic cutaneous leishmaniasis in Fars province, south of Iran

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