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
Eiosinophilic meningoencephalitis is causes by - 
Select and explain. 
A. Gnathostoma spinigerum, B. Naegleria, C. Toxocara canis, D. Angiostrongylus cantonesis
A: Gnathostoma spinigerum
Answer: A: Gnathostoma spinigerum 
Explanation: The larva infects mollusc Human infection is acquired by eating infected molluscs The larva penetrate the gut and are carried to the brain There is an inflammatory reaction in the brain and meninges to produce meningoencephalitis (refer pgno:177 baveja 3 rd edition)