This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Microbiology
In renal transplant recipients, which is the likely organism causing reactivation disease within 1-4 months after surgery? 
Select and explain. 
A. EBV, B. CMV, C. HSV, D. VZV
B: CMV
Answer: B: CMV 
Explanation: CMVis theMC viral agent causing oppounistic disease(esp. between 1-4 months after surgery) in transplant recipients.