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: Microbiology
All of the following disease may be acquired by ingestion except - 
Select and explain. 
A. Taeniasis, B. Guinea worm, C. Toxoplasmosis, D. Leishmaniasis
D: Leishmaniasis
Answer: D: Leishmaniasis 
Explanation: None