This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology, Subject name: Microbiology
The following are true of kala azar except. 
Select and explain. 
A. Persistent hypergammaglobulinemia, B. Pancytopenia, C. Cancrum oris can occur, D. Full treatment prevents PKDL
D: Full treatment prevents PKDL
Answer: D: Full treatment prevents PKDL 
Explanation: Ans. is 'd' i.e., Full treatment prevents PKDLPKDL is a cutaneous form of leishmaniasis that occurs in about 2-10% kala azar patients generally one or two years after completion of antimonial treatment. When the visceral infection disappears but the skin infections persists.