This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Montenegro test is done for 
Select and explain. 
A. Hydatid disease, B. TAENIASIS, C. Filariasis, D. kala-azar
D: kala-azar
Answer: D: kala-azar 
Explanation: This test is based on skin reaction . Leishmanin is a preparation of 106 per ml washed promastigotes of leishmania, suspended in 0.5 per cent phenol saline or mehiolate. Ref: page No:334; park 25th Edition