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
All can cause pulmonary eosinophilia except- 
Select and explain. 
A. Necator americanus, B. Trichinella spiralis, C. Ankylostoma duodenale, D. Ascaris lumbricoides
B: Trichinella spiralis
Answer: B: Trichinella spiralis 
Explanation: Trichnella does not pass through the lungs during its life cycle. The other three pass through the lungs as a pa of their life cycle. They cause Loffler's syndrome - in which eosinophils accumilate in the lungs in response to parasitic infection. Strongyloides can also cause Loffler's syndrome. Reference: Ananthanarayan and Paniker&;s Textbook of Microbiology Tenth edition