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
[{'content': 'In the management of leprosy, Lepromin test is most useful for - \nSelect and explain. \nA. Herd immunity, B. Prognosis, C. Treatment, D. Epidemiological investigations', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The lepromin test has great value in prognosis of leprosy. Lepromin negative individuals are at higher risk of developing progressive multibacillary leprosy,but those who are lepromin positive can either escape the clinical disease or develop paucibacillary disease. Reference : Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 338', 'role': 'assistant'}]