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Population Structures of Leishmania Infantum and Leishmania Tropica the Causative Agents of Kala-Azar in Southwest Iran Publisher Pubmed



Ghatee MA1, 2 ; Mirhendi H3 ; Karamian M4, 5 ; Taylor WR6, 7 ; Sharifi I8 ; Hosseinzadeh M9 ; Kanannejad Z10
Authors
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Authors Affiliations
  1. 1. Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
  2. 2. Department of Parasitology, School of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
  3. 3. Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
  5. 5. Infectious Diseases Research Centre, Birjand University of Medical Sciences, Birjand, Iran
  6. 6. Mahidol Oxford Tropical Medicine Research Unit, Bangkok, Thailand
  7. 7. Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
  8. 8. Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
  9. 9. Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
  10. 10. Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

Source: Parasitology Research Published:2018


Abstract

Visceral leishmaniasis (VL) is endemic in Iran and is caused predominantly by Leishmania infantum, but L. tropica is emerging as an important cause. We studied the intra-species population structure of Leishmania spp. causing VL in southwest Iran by sequence analysis of the internal transcribed spacer (ITS) 1 of DNA samples from 29 bone marrow aspiration smears. L. infantum (n = 25) and L. tropica (n = 4) were identified, consisting of 10 and three ITS1 sequence types (STs), respectively. Compared to GenBank ITS1 STs, our L. infantum parasites displayed high heterogeneity but less heterogeneity compared than northwest Iranian isolates. VL affects mostly nomadic populations in southwest Iran, and their mobility may explain partly the L. infantum heterogeneity. The VL causing L. tropica was also genetically heterogeneous but genetically indistinguishable from L. tropica strains causing anthroponotic cutaneous leishmaniasis from southwest Iran. © 2018, The Author(s).
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