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Pneumococcal conjugate vaccination in children with recurrent acute otitis media: a therapeutic alternative?

Muriel J P van Kempen1, Judith S Vermeiren, Mario Vaneechoutte

  • 1Department of Otorhinolaryngology, Ghent University Hospital, Belgium.

International Journal of Pediatric Otorhinolaryngology
|September 6, 2005
PubMed

Insights

Pneumococcal conjugate vaccines did not reduce recurrent acute otitis media (AOM) in children, despite good immune responses. This study found no clinical protective effect for frequent AOM cases.

Area of Science:

  • Pediatric Infectious Diseases
  • Vaccinology
  • Otolaryngology

Background:

  • The American Academy of Pediatrics recommends pneumococcal conjugate vaccines for infants with recurrent acute otitis media (AOM).
  • Previous recommendations were based on trials in healthy infants, not specifically those with frequent AOM.

Purpose of the Study:

  • To evaluate the efficacy of a 7-valent pneumococcal conjugate vaccine in preventing recurrent AOM.
  • To assess the vaccine's immunogenicity and impact on nasopharyngeal Streptococcus pneumoniae carriage in children with a history of frequent AOM.

Main Methods:

  • A double-blind, randomized study involving 74 Belgian children aged 1-7 years with at least two AOM episodes in the prior year.
  • Participants received either a 7-valent pneumococcal conjugate vaccine with a booster or a control hepatitis A vaccine.
  • Follow-up duration was 26 months.

Main Results:

  • No significant reduction in AOM episodes was observed in the pneumococcal vaccine group compared to controls (rate ratio: 1.16).
  • Nasopharyngeal pneumococcal carriage remained stable overall.
  • A temporary shift in S. pneumoniae serogroups from vaccine-related to non-vaccine-related types was noted post-vaccination.

Conclusions:

  • Pneumococcal conjugate vaccination showed no clinical protective effect against recurrent AOM in children with a history of frequent AOM.
  • The findings suggest current recommendations may need re-evaluation for this specific pediatric population.
Abstract

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