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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Herpes - Zoster is caused by -
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The correct answer is  Herpes zoster usually occurs in person who had chickenpox several years earlier,which is caused by varicella REF:ANANTHANARYANAN TEXTBOOK OF MICROBIOLOGY 9th EDITION PGNO.472