2022-07-05-世界卫生组织-Immunization_Madagascar_2022_country_profile_24页_401kb

WHO and UNICEF Immunization Coverage Estimates for Madagascar (2021 Revision)

Based on data received by July 7, 2022, this document outlines immunization coverage estimates for Madagascar, assessing performance for various vaccines. The methodology uses country-specific data from national reports, surveys, administrative records, and expert reviews, with no data borrowing from other countries. Coverage is graded based on empirical support, and estimates are cautious due to potential biases and data quality issues.

Key Details

• 2021 Estimation: Data calibrated to 2019 levels due to vaccine stock-outs (one month at national/subnational levels), with pending results from the 2021 DHS (Demographic and Health Survey).
• Annual Trends: Coverage varies by year; for example:
  • BCG: 76%
  • DTP1: 78%
  • DTP3: 66%
  • Pol3: 64%
• Grades of Confidence (GoC): Assigned for each indicator; some are low (e.g., challenged by D-R-S, indicating data reliability issues). Annual estimates are often adjusted or based on surveys, with cautions raised for discrepancies.
• Data Challenges: Frequent stock-outs reported (e.g., OPV and IPV in 2021), survey inconsistencies, and lack of empirical support in some years. For instance, 2021 estimates are provisional pending final survey data.
• Other Indicators: Includes MCV1 (measles-containing vaccine), HepB, Hib, RotaC, etc., with specific coverage percentages provided.
• Supporting Data: Maternal and child health weeks contribute to immunization services, and historical vaccine confirmations from surveys are used to adjust estimates.
• Next Revision: Available in July 2023.

Estimates reflect immunization coverage trends but should be used with caution due to data uncertainties and potential stock-out impacts on program performance.