[Reactivation of persistent herpes virus infection as a factor of endogenous uveitis in children]

Insights

Human herpes virus infections are common in children with endogenous uveitis. Reactivation, particularly of herpes simplex virus type 1, is frequent in those with weakened immunity, leading to severe uveitis.

Area of Science:

  • Ophthalmology
  • Virology
  • Immunology

Background:

  • Endogenous uveitis in children is a significant cause of vision impairment.
  • The role of viral and atypical infections in pediatric uveitis requires further elucidation.

Purpose of the Study:

  • To investigate the prevalence of human herpes group virus, Mycoplasma, and Chlamydia infections in children with endogenous uveitis.
  • To identify associations between specific viral reactivations, immune status, and uveitis severity.

Main Methods:

  • Retrospective analysis of 255 children (2 months to 15 years) diagnosed with endogenous uveitis.
  • Serological testing for past infections with human herpes group viruses, Mycoplasma, and Chlamydia.
  • Assessment of cell-mediated antiviral immunity.

Main Results:

  • High prevalence (73-93%) of chronic human herpes group virus infections detected.
  • Herpes simplex virus type 1 reactivation was more common than other herpesviruses.
  • Cytomegalovirus reactivation was prevalent in mothers of infants with intrauterine uveitis.
  • Prolonged herpesvirus replication occurred in children with suppressed antiviral immunity.
  • Uveitis exhibited a severe clinical course with frequent relapses in these children.

Conclusions:

  • Human herpes viruses are frequently implicated in pediatric endogenous uveitis.
  • Impaired cell-mediated antiviral immunity contributes to severe and recurrent uveitis in children.
  • Targeted antiviral therapies may be beneficial in managing herpesvirus-associated pediatric uveitis.

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