Journal
CURRENT NEUROLOGY AND NEUROSCIENCE REPORTS
Volume 13, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1007/s11910-013-0374-z
Keywords
Varicella zoster virus; Nervous system; Latency; Pathogenesis; Immunity; Immunization; Animal model; Variegate neurological manifestations
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Funding
- NIH [AG006127, AG032958, NS082228, NS067070]
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Varicella zoster virus (VZV) is an exclusively human neurotropic alphaherpesvirus. Primary infection causes varicella (chickenpox), after which the virus becomes latent in ganglionic neurons along the entire neuraxis. With advancing age or immunosuppression, cell-mediated immunity to VZV declines, and the virus reactivates to cause zoster (shingles), dermatomal distribution, pain, and rash. Zoster is often followed by chronic pain (postherpetic neuralgia), cranial nerve palsies, zoster paresis, vasculopathy, meningoencephalitis, and multiple ocular disorders. This review covers clinical, laboratory, and pathological features of neurological complications of VZV reactivation, including diagnostic testing to verify active VZV infection in the nervous system. Additional perspectives are provided by discussions of VZV latency, animal models to study varicella pathogenesis and immunity, and of the value of vaccination of elderly individuals to boost cell-mediated immunity to VZV and prevent VZV reactivation.
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