Social & Preventive Medicine Causative agent for kala-azar/ visceral leishmaniasis: September 2011 A Leishmania donovani B Leishmania tropica C Leishmania braziliensis D None of the above 💡 Explanation Causative agent for kala-azar/ visceral leishmaniasis: September 2011 ✓ Correct Answer: A. Leishmania donovani