2022-07-05-世界卫生组织-Immunization_Syrian_Arab_Republic_2022_country_profile_18页_393kb

Summary of WHO and UNICEF Immunization Coverage Estimates for the Syrian Arab Republic (2021 Revision)

Key Background

• The estimates are based on data from national reports, surveys, and expert reviews, with overall confidence graded but no statistical intervals provided.
• Coverage data calibration uses earlier years or external sources when gaps exist, reflecting empirical support.
• Civil unrest remains a primary challenge, impacting service delivery and data accuracy.

Primary Findings

Over several vaccine types, coverage estimates show persistent low levels due to conflict-related disruptions. The trend post-2013 indicates stabilization, though no consistent improvement:

• For Pol3 (polio), coverage fluctuated between 48% in 2018 and 53% in 2021.
• DTP vaccines showed averages of 67%–76%, with concerns like incomplete reporting and stock-outs.
• Most vaccines are calibrated from 2005 or 2011 data, indicating reliance on past stability.

Data Guides and Challenges

• Common confounders include national-level stock-outs, census data gaps, and migration, leading to GoC assignments rated "Supported" or "Challenged."
• Policy interruptions, such as scheduled changes, affect interpretation; e.g., HepB coverage may reflect campaign doses.
• The September 2020 survey altered or ignored data for some years, highlighting survey reliability issues.