Immunization coverage among children aged 12-23 months: A cross sectional study in low performing blocks of Bihar,

C M Singh1, Abhisek Mishra1, Neeraj Agarwal1

  • 1Department of Community and Family Medicine, AIIMS, Patna, Bihar, India.

Insights

This study assessed immunization coverage in Bihar, finding that while corrected coverage is high, nearly 9% of children did not complete their vaccinations due to barriers like child unavailability and illness.

Area of Science:

  • Public Health
  • Pediatrics
  • Epidemiology

Background:

  • Immunization prevents millions of child deaths annually, with vaccines averting 20 million premature deaths and 500 million disease cases globally.
  • Despite progress, routine vaccine coverage remains a challenge for underserved and vulnerable populations, necessitating periodic evaluation and improvement strategies in Bihar.

Purpose of the Study:

  • To determine the vaccination coverage rates across different Blocks within the study area in Bihar.
  • To identify factors affecting immunization status among children aged 12-23 months in low-performing blocks.

Main Methods:

  • A community-based cross-sectional study was conducted in 59 low-performing blocks of Bihar from January to March 2019.
  • The study included children aged 12-23 months residing in selected villages within these blocks.

Main Results:

  • The corrected full immunization coverage (FIC) was found to be 90.85%.
  • Approximately 8.8% of children initiated vaccination but did not complete it, while others were completely left out.
  • The primary reasons cited for incomplete immunization were child's unavailability on vaccination day and child's sickness.

Conclusions:

  • Overall immunization coverage in Bihar is lower than the national average reported by NFHS-4.
  • The study highlights a higher rate of corrected immunization coverage, suggesting potential for improvement in program implementation.
Abstract

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