Herpes zoster in an immunocompetent boy following intrauterine exposure to varicella-zoster virus

Herpes zoster (HZ) is caused by the varicellazoster virus (VZV) and is considered to be a reactivation of latent infection. The first clinical manifestation of VZV infection during infancy typically presents as chickenpox; however, HZ canbe observed in infants and children without a history of symptomatic varicella. We report the case of a 4-year-old immunocompetent boy who developed HZ after intrauterine exposure to VZV.