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[[Image:Leishmania Life Cycle.jpg|thumb|right|150px|Leishmania Life Cycle - Wikimedia Commons]]

[[Image:Leishmania Life Cycle.jpg|thumb|right|150px|Leishmania Life Cycle - Wikimedia Commons]]

[[Image:Leishmania donovani.jpg|thumb|right|150px|''Leishmania donovani'' in bone marrow cell - Dr. L.L. Moore, Jr.]]

[[Image:Leishmania donovani.jpg|thumb|right|150px|''Leishmania donovani'' in bone marrow cell - Dr. L.L. Moore, Jr.]]

[[Image:Leishmania tropica.jpg|right|thumb|150px|''L. tropica'' <p> Yutaka TsutsumiWikiMedia Commons]]

[[Image:Leishmania tropica.jpg|right|thumb|150px|''L. tropica'' <p> Yutaka TsutsumiWikiMedia Commons]]

*Are closely related to ''Trypanosoma'' spp.

''Leishmania spp.'' are intracellular parasites of [[Macrophage|macrophages]] from the same family as ''Trypanosoma spp.''. These organisms parasitise human, dogs and wild animals throughout southern Europe, Africa, Asia and South America. The infection is transmitted by sandflies. Infection can cause both cutaneous and visceral disease. Three types of ''Leishmania spp.'' are described;

# Suprpylaria - found only in mammals transmitted by the bite of a sandfly, development occurs in the fore- and midgut of the fly.

*Ovoid shaped

*Ovoid shaped