Pediatric herpes zoster: should I be concerned for immunodeficiency? A review

Herpes zoster (HZ), caused by reactivation of varicella-zoster virus (VZV), is an uncommon cause of rash in pediatrics, which can lead to concerns of an underlying immunodeficiency. We reviewed studies on HZ in pediatric patients. The diagnosis of HZ can usually be established based on clinical and...

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Main Authors: Steven Zhang, Vy H. D. Kim, Eyal Grunebaum
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-03-01
Series:Frontiers in Pediatrics
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Online Access:https://www.frontiersin.org/articles/10.3389/fped.2025.1561339/full
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author Steven Zhang
Vy H. D. Kim
Eyal Grunebaum
author_facet Steven Zhang
Vy H. D. Kim
Eyal Grunebaum
author_sort Steven Zhang
collection DOAJ
description Herpes zoster (HZ), caused by reactivation of varicella-zoster virus (VZV), is an uncommon cause of rash in pediatrics, which can lead to concerns of an underlying immunodeficiency. We reviewed studies on HZ in pediatric patients. The diagnosis of HZ can usually be established based on clinical and epidemiological features. HZ is associated with T-cell immune defects that can be secondary to infections with HIV, tuberculosis, and other pathogens, as well as conditions such as diabetes, malnutrition, cancer, or primary immunodeficiency. Important clinical clues indicating that HZ is due to an underlying immunodeficiency include recurrent HZ during a short period; disseminated HZ; new lesions more than a week after presentation; prolonged course despite antiviral medications; a history of recurrent, invasive, or prolonged infections by other pathogens; and a family history of immunodeficiency or consanguinity. Reassuring features include exposure to VZV prior to 1 year of age or a compromised or incomplete VZV vaccination schedule. Initial laboratory analysis may include confirmation of normal newborn screening for profound T-cell immunodeficiency; a complete blood count with differential, quantitative serum immunoglobulins; lymphocyte subset analysis; and the presence of IgG to VZV. In children previously vaccinated for VZV, the possibility of vaccine-type HZ needs to be considered. In conclusion, isolated and uncomplicated childhood HZ is unlikely to be the sole harbinger of an underlying immunodeficiency. Therefore, most children with HZ can be adequately diagnosed through medical history and readily available laboratory evaluations. The presence of concerning clinical or laboratory features should prompt an evaluation by an experienced specialist.
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spelling doaj-art-0a2de3d92f604175bec6effe0c66f6c82025-08-20T02:52:27ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602025-03-011310.3389/fped.2025.15613391561339Pediatric herpes zoster: should I be concerned for immunodeficiency? A reviewSteven ZhangVy H. D. KimEyal GrunebaumHerpes zoster (HZ), caused by reactivation of varicella-zoster virus (VZV), is an uncommon cause of rash in pediatrics, which can lead to concerns of an underlying immunodeficiency. We reviewed studies on HZ in pediatric patients. The diagnosis of HZ can usually be established based on clinical and epidemiological features. HZ is associated with T-cell immune defects that can be secondary to infections with HIV, tuberculosis, and other pathogens, as well as conditions such as diabetes, malnutrition, cancer, or primary immunodeficiency. Important clinical clues indicating that HZ is due to an underlying immunodeficiency include recurrent HZ during a short period; disseminated HZ; new lesions more than a week after presentation; prolonged course despite antiviral medications; a history of recurrent, invasive, or prolonged infections by other pathogens; and a family history of immunodeficiency or consanguinity. Reassuring features include exposure to VZV prior to 1 year of age or a compromised or incomplete VZV vaccination schedule. Initial laboratory analysis may include confirmation of normal newborn screening for profound T-cell immunodeficiency; a complete blood count with differential, quantitative serum immunoglobulins; lymphocyte subset analysis; and the presence of IgG to VZV. In children previously vaccinated for VZV, the possibility of vaccine-type HZ needs to be considered. In conclusion, isolated and uncomplicated childhood HZ is unlikely to be the sole harbinger of an underlying immunodeficiency. Therefore, most children with HZ can be adequately diagnosed through medical history and readily available laboratory evaluations. The presence of concerning clinical or laboratory features should prompt an evaluation by an experienced specialist.https://www.frontiersin.org/articles/10.3389/fped.2025.1561339/fullherpes zostervaricella-zoster viruspediatricsimmunodeficienciesinborn errors of immunity
spellingShingle Steven Zhang
Vy H. D. Kim
Eyal Grunebaum
Pediatric herpes zoster: should I be concerned for immunodeficiency? A review
Frontiers in Pediatrics
herpes zoster
varicella-zoster virus
pediatrics
immunodeficiencies
inborn errors of immunity
title Pediatric herpes zoster: should I be concerned for immunodeficiency? A review
title_full Pediatric herpes zoster: should I be concerned for immunodeficiency? A review
title_fullStr Pediatric herpes zoster: should I be concerned for immunodeficiency? A review
title_full_unstemmed Pediatric herpes zoster: should I be concerned for immunodeficiency? A review
title_short Pediatric herpes zoster: should I be concerned for immunodeficiency? A review
title_sort pediatric herpes zoster should i be concerned for immunodeficiency a review
topic herpes zoster
varicella-zoster virus
pediatrics
immunodeficiencies
inborn errors of immunity
url https://www.frontiersin.org/articles/10.3389/fped.2025.1561339/full
work_keys_str_mv AT stevenzhang pediatricherpeszostershouldibeconcernedforimmunodeficiencyareview
AT vyhdkim pediatricherpeszostershouldibeconcernedforimmunodeficiencyareview
AT eyalgrunebaum pediatricherpeszostershouldibeconcernedforimmunodeficiencyareview