文档介绍：varicella zoster virus (VZV)
Primary VZV infection, which usually occurs in children, results in chickenpox (varicella), after which the virus becomes latent in ganglionic neurons along the entire neuraxis. Years later, as cell-mediated immunity to VZV declines with age or from immunosuppression (such as in organ-transplant recipients or patients with cancer or AIDS), VZV can reactivate to cause zoster (shingles). Zoster is often followed by chronic pain