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Invasive pneumococcal disease in pediatric organ transplant recipients: a high-risk population

Leanne Tran1, Diane Hébert, Anne Dipchand

  • 1Division of Infectious Diseases, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.

Pediatric Transplantation
|March 25, 2005
PubMed

Insights

Pediatric transplant recipients face a higher risk of invasive pneumococcal disease than healthy children. This study found significant missed vaccination opportunities in this vulnerable population.

Area of Science:

  • Pediatric Transplant Medicine
  • Infectious Diseases
  • Vaccinology

Background:

  • Invasive pneumococcal disease (IPD) poses a significant risk to pediatric transplant recipients.
  • Limited data exists on IPD incidence and outcomes in this specific population.
  • The introduction of pneumococcal conjugate vaccines (PCVs) necessitates updated understanding of IPD epidemiology.

Purpose of the Study:

  • To determine the incidence and outcomes of invasive pneumococcal disease in pediatric transplant recipients.
  • To analyze the timing of IPD occurrence post-transplantation.
  • To identify vaccination status and opportunities in this cohort.

Main Methods:

  • Retrospective study conducted at a major pediatric transplant center.
  • Analysis of IPD cases in pediatric transplant recipients.
  • Comparison of IPD incidence rates with healthy pediatric populations.

Main Results:

  • IPD occurred at a significantly higher rate (176 episodes/100,000 child-years) compared to healthy children (<5 years).
  • Infections occurred at a median of approximately 20 months post-transplantation.
  • A notable proportion of patients had missed opportunities for pneumococcal vaccination.

Conclusions:

  • Pediatric transplant recipients experience a substantially elevated risk of invasive pneumococcal disease.
  • The timing of IPD suggests a potential window for effective vaccination strategies.
  • Addressing missed vaccination opportunities is crucial to mitigate IPD risk in this population.

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