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
Zoster recurrence occur after infection with - 
Select and explain. 
A. HSV 1, B. HSV 2, C. Varicella, D. Small pox
C: Varicella
Answer: C: Varicella 
Explanation: repeated