<prompt> Which of the following is a causative agent of Visceral Leishmaniasis?Leishmania braziliensisLeishmania panamensisLeishmania donovaniLeishmania major  <response>: Visceral Leishmaniasis kala-azar in Hindi is caused by the L. donovani complex, which includes L. donovani anthroponotic transmission and L. infantum or L. chagasi zoonotic transmission. Prevalence: India and neighboring Nepal, Bangladesh, Sudan, and Brazil are the four largest foci of VL and account for 90 of the worlds VL burden, with India the worst affected. Ref: Sundar S. 2012. Chapter 212. Leishmaniasis. In D.L. Longo, A.S. Fauci, D.L. Kasper, S.L. Hauser, J.L. Jameson, J. Loscalzo Eds, Harrisons Principles of Internal Medicine, 18e. 