The disease caused by Leishmania and transmitted by Phlebotomus is known as Amoebic dysentery, African sleeping sickness, Chagas disease, or Kala-azar fever?

Kala-azar is a visceral disease caused by Leishmania, a protozoan parasite and is transmitted by Phlebotomus. African sleeping sickness is caused by Trypanosoma brucei. Amoebic dysentery is caused by Entamoeba histolytica while Chaga's disease is caused by Trypanosoma cruzi. So, the correct answer is Kala-azar fever.