In this article we will discuss about: 1. Systematic Position of Leishmania Donovani 2. Speciation of Leishmania Donovani 3. Types 4. Habits and Habitat 5. Vectors 6. Symptoms and Pathogenesis 7. Clinical Features 8. Prophylaxis. Leishmania is an important pathogenic zoo-flagellate genus closely related to Trypanosoma. The genus Leishmania was created by Ross in 1903. […]