Herpes Zoster in a 3-month-old infant
Keywords:Herpes zoster, varicella-zoster virus, infant
Introduction: Herpes Zoster (HZ) is rare in infancy and results from reactivation of varicella-zoster virus, latent in the dorsal root ganglia of sensory or cranial nerves after primary infection (chickenpox).
Case Report: We describe the case of an healthy infant, three months old, without previous clinical symptoms of chickenpox, in spite of having contacted with the disease at two weeks of life. She was hospitalized for vesicular-papular rash involving unilaterally dermatomes L4 and L5 and was treated with acyclovir with good clinical outcome.
Conclusion: The immaturity of the immune system and the interference of maternal antibodies contribute to the manifestation of HZ in the first year of life. In a previously healthy child it is not recommended the exclusion of underlying immunodeficiency or malignant disease.
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