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
Following are examples of human 'dead end' disease except 
Select and explain. 
A. Leishmaniasis, B. Japanese encephalitis, C. Hydatid disease, D. Bubonic plague
A: Leishmaniasis
Answer: A: Leishmaniasis 
Explanation: None