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Leishmania infantum

Leishmania infantum

Leishmania infantum

Taxonomy

  • Phylum Euglenozoa
  • Class kinetoplasta
  • Order Trypanosomatida
  • Family Trypanosomatidae
  • Genus Leishmania

Final host

  • Human, dog, fox, wild canids, rodents (vertebrate host)

    Morphology

  • Amastigotes (≈ 2-4 µm) are ovoid organisms within the macrophage (and other cells of the reticuloendothelial system) and possess a rod-shaped kinetoplast associated with a rudimentary flagellum
  • Promastigotes are elongated organisms (≈ 15 µm long) and have a kinetoplast associated with a flagellum at the front end of the body

    Cycle

  • Indirec (vectorial transmission)
  • Vectors: sand flies Psicodidae (Phlebotomus, Lutzomyia)

    Location

  • Macrophages and other cells of the reticuloendothelial system

    Feeding

  • Saprozoic

    Diagnostic

  • Amastigotes within macrophages and other cells of the reticuloendothelial system

    Transmission

  • Metacyclic Promastigote