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
[{'content': 'All of the following disease may be acquired by ingestion except- \nSelect and explain. \nA. Taeniasis, B. Guinea worm, C. Toxoplasmosis, D. Leishmaniasis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A sandfly species named phlebotomous argentipus act as Indian vector Infection occurs by bite of infected sandfly Incubation period varies from 3 to 6 months (refer pgno:40 baveja 3 rd edition)', 'role': 'assistant'}]