Leishmaniasis of kala azar disease caused by Protozoan (Leishmania donovanii and spread by

Leishmaniasis of kala azar disease is caused by Protozoan (Leishmania donovanii and spread by Sand flies.
Leishmaniasis is a parasitic disease that is found in parts of the tropics, subtropics, and southern Europe. Leishmaniasis is caused by infection with Leishmania parasites, which are spread by the bite of infected sand flies.
There are 3 main forms of the disease, Visceral leishmaniasis (VL), also known as kala-azar, is fatal if left untreated in over 95% of cases.