Varicella zoster virus (VZV) causes varicella as a primary infection. After the primary infection, the virus remains latent within the sensory dorsal root ganglia and can reactivate as herpes zoster (HZ). It is most common in adults, especially elderly and immunocompromised patients, but rarely occurs in children. Herpes zoster is most often seen in individuals previously infected with VZV, but it also has occurred in individuals without known varicella infection, possibly because these individuals had a prior subclinical VZV infection. We present a case of HZ in an otherwise healthy 18-month-old boy with no known varicella exposure who received the VZV vaccine at 12 months of age.
Varicella Zoster, Herpes Zoster, Vaccination, Child