This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Immunoprophylaxis of leprosy is best done by which of the following given choices? 
Select and explain. 
A. MMR, B. Killed ICRC bacillus, C. Plague bacillus, D. Anthrax bacillus
B: Killed ICRC bacillus
Answer: B: Killed ICRC bacillus 
Explanation: Maximum work has been done with BCG+ heat killed M. leprae (will be the best answer). In the choices given Cat 2 killed ICRC bacillus is used for Immunoprophylaxis of leprosy. Ref: Park, 20th Edition, Page 286.