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Population-based impact of routine infant immunization with pneumococcal conjugate vaccine in the USA

Carlos G Grijalva1, Marie R Griffin

  • 1Division of Pharmacoepidemiology, Department of Preventive Medicine, Vanderbilt University School of Medicine, 1500 21st Ave S. The Village at Vanderbilt Suite # 2650, Nashville, TN 37212, USA. carlos.grijalva@vanderbilt.edu

Expert Review of Vaccines
|February 7, 2008
PubMed

Insights

The heptavalent pneumococcal conjugate vaccine (PCV7) introduction in the USA significantly reduced invasive pneumococcal disease, pneumonia, and otitis media in infants. This summary reviews the population-based impact of the PCV7 infant immunization program.

Area of Science:

  • Pediatrics
  • Immunology
  • Public Health

Background:

  • The heptavalent pneumococcal conjugate vaccine (PCV7) was introduced in the USA in 2000.
  • Routine infant immunization with PCV7 was recommended following its licensure.
  • Pneumococcal diseases, including invasive disease, pneumonia, and otitis media, pose significant health burdens.

Purpose of the Study:

  • To summarize the population-based impact of the PCV7 infant immunization program in the USA.
  • To review current evidence on the effectiveness of PCV7 in reducing pneumococcal disease burden.
  • To assess the public health impact of widespread infant vaccination.

Main Methods:

  • Literature review of population-based studies.
  • Analysis of epidemiological data on pneumococcal disease incidence.
  • Synthesis of evidence on the impact of PCV7 on disease rates.

Main Results:

  • Significant reductions in invasive pneumococcal disease rates attributed to PCV7 vaccination.
  • Documented decrease in pneumonia and otitis media incidence following PCV7 introduction.
  • Evidence of widespread population-level impact of the infant immunization program.

Conclusions:

  • The PCV7 infant immunization program has been highly effective in the USA.
  • PCV7 vaccination led to substantial declines in pneumococcal disease burden.
  • The program demonstrates the public health value of conjugate vaccines in infancy.

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