This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: VBDs, Arboviral & Viral Infections, Surface Infections, Subject name: Social & Preventive Medicine
Kala-azar is found in all endemic areas, except:- 
Select and explain. 
A. West Bengal, B. UP, C. Bihar, D. Assam
D: Assam
Answer: D: Assam 
Explanation: Kala-Azar is endemic in the following 4 states of India : 1. Bihar 2. Jharkhand 3. West Bengal 4. Uttar Pradesh - This is because of the vector: Phlebotomus argentipes primarily found in these 4 states.