This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Viral infections, Subject name: Dental
The most common site for Herpes Zoster is: 
Select and explain. 
A. Sacral area, B. Cervical area, C. Limbs, D. Thoracic area
D: Thoracic area
Answer: D: Thoracic area 
Explanation: Varicella-zoster virus (VZV) causes two distinct clinical entities: varicella (chickenpox) and herpes zoster (shingles). Chickenpox, a contagious infection, is usually a benign illness of childhood characterized by an exanthematous vesicular rash. The dermatomes from T3 to L3 are most frequently involved. (Thoracic area) Herpes Zoster: Reactivation of latent VZV from dorsal root ganglia. Seen in immunocompromised hosts, especially AIDS. Characterized by a unilateral vesicular dermatomal eruption associated with severe pain. Ocular symptoms can occur after zoster eruption in any branch of the trigeminal nerve but are paicularly common when vesicles form on the nose, reflecting nasociliary (V1) nerve involvement (Hutchinson's sign).