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Influence of immunization schedule on immunization coverage.

S T Chen1

  • 1Department of Paediatrics, University of Malaya, Kuala Lumpur, Malaysia.

The Journal of Tropical Medicine and Hygiene
|December 1, 1989
PubMed
Summary
This summary is machine-generated.

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Infant immunization coverage in Malaysia improved when the DPT vaccine was recommended at two months but declined when shifted to three months. Early infant vaccination offers significant health advantages.

Area of Science:

  • Pediatrics
  • Public Health
  • Epidemiology

Background:

  • Infant immunization is crucial for disease prevention.
  • Tracking vaccine coverage trends is vital for public health planning.
  • Malaysia has specific vaccination schedules for DPT and TOPV.

Purpose of the Study:

  • To analyze infant immunization coverage trends for DPT and TOPV in Peninsular Malaysia from 1968 to 1985.
  • To evaluate the impact of changes in recommended vaccination ages on coverage rates.
  • To discuss the benefits of early infant immunization.

Main Methods:

  • Retrospective analysis of immunization records.
  • Data collection on DPT and TOPV coverage.
  • Correlation of coverage rates with policy changes regarding vaccination age.

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Main Results:

  • Diphtheria, Pertussis, and Tetanus (DPT) vaccine coverage increased after the recommended age for the first dose was moved to two months in 1972.
  • Trivalent Oral Polio Vaccine (TOPV) coverage also showed improvement following the 1972 policy change.
  • Coverage rates for both DPT and TOPV declined after the recommended age for the first dose was revised to three months in 1980.

Conclusions:

  • The timing of initial vaccination significantly impacts infant immunization coverage.
  • Administering DPT and TOPV at an earlier age (two months) is associated with higher coverage rates.
  • Public health policies on vaccination schedules should consider the advantages of early infant immunization.