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Epstein-Barr Virus Strongly Associates With Pediatric Multiple Sclerosis, But Not Myelin Oligodendrocyte

Giulia Fadda1, Carmen Yea2, Julia O'Mahony3

  • 1Department of Medicine, University of Ottawa, Ottawa Hospital Research Institute, Ottawa, ON, Canada.

Annals of Neurology
|February 27, 2024
PubMed

Insights

Epstein-Barr virus (EBV) is strongly linked to pediatric multiple sclerosis (MS) when myelin oligodendrocyte glycoprotein-associated disease (MOGAD) is excluded. This study confirms EBV

Area of Science:

  • Neurology
  • Immunology
  • Virology

Background:

  • Pediatric multiple sclerosis (MS) shows lower Epstein-Barr virus (EBV) seropositivity than adult MS.
  • Prior studies did not account for myelin oligodendrocyte glycoprotein-associated disease (MOGAD).

Purpose of the Study:

  • To investigate the role of EBV in pediatric demyelinating diseases, including MS and MOGAD.
  • To clarify EBV's association with MS in children after accounting for MOGAD.

Main Methods:

  • Assessed viral serologies in 251 children with incident demyelination.
  • Prospectively ascertained diagnoses of MS and MOGAD.
  • Compared EBV seroprevalence between pediatric MS and MOGAD cohorts.

Main Results:

  • EBV seroprevalence exceeded 90% in pediatric MS cases after excluding MOGAD.
  • Remote EBV infection was not associated with an increased risk of MOGAD.
  • Findings suggest distinct etiologies for MS and MOGAD.

Conclusions:

  • Epstein-Barr virus plays a significant role across the spectrum of multiple sclerosis.
  • The distinct pathobiological mechanisms of MS and MOGAD are supported by these findings.
  • This research clarifies EBV's role in pediatric demyelinating diseases.

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