Varicella (Chickenpox)

Infectious Agent

Varicella-zoster virus (VZV), a member of the herpesvirus family. Humans are the only reservoir of VZV, and disease occurs only in humans. After primary infection as varicella (chickenpox), VZV remains latent in the sensory-nerve ganglia and can reactivate later, causing herpes zoster (shingles).

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