Herpes zoster (HZ) is a varicella zoster virus (VZV) that attacks locality of nerves and skin, resulting in formation of clusters of blisters on the skin connected unilateral facial nerve and accompanying apparent nerve pain. Incidence ranges from 3.2 to 4.2 per 1000 populations per year in the United States. Influence factors of HZ include age, infection history with VZV, vaccination history of varicella vaccine, reduced immunocompetence, and other diseases. Current domestic studies on HZ mainly focus on clinical reports of case treatment. This study reviews advances in foreign epidemiological studies of HZ.
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