This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
standard test for diagnosis of IMN - 
Select and explain. 
A. Monospot test, B. Paul Bunnel test, C. Lymphocytosis in peripheral smear, D. Culture
B: Paul Bunnel test
Answer: B: Paul Bunnel test 
Explanation: Paul Bunnel test is the standard diagnostic procedure in IMN. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:476