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: Medicine
Which viral infection is associated with neutropenia : 
Select and explain. 
A. Hepatitis A, B. Influenza A, C. HIV, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. is 'd' all of the above (Ref Chandrasoma Taylor, 3/e, p. 412; Harrison, 16/e, p 352 (15/e, p. 369)).Viral infections associated with neutropenia :HepatitisMeaslesAIDS (HIV)Infectious mononucleosisInfluenza ("severe (eulippenia can occur in overwhelming infection" - Harrison, 15/e, p1129)