Have a digenetic existence cycle, involving a motile, extracellular promastigote stage that parasitizes the alimentary tract of a sandfly vector and an immotile amastigote phase that survives and replicates while in the phagolysosomes of mononuclear phagocytes [two,three]. Apart from human beings, primary hosts of Leishmania have been special genes expressed https://haynesi555ufp7.wikikarts.com/user