2022-07-05-世界卫生组织-Immunization_Azerbaijan_2022_country_profile_16页_367kb

Summary of WHO and UNICEF Immunization Coverage Estimates for Azerbaijan (2021 Revision)

• Methodology: WHO and UNICEF estimate national immunization coverage using data from national governments, surveys, and administrative reports, with a confidence grade (GoC) to indicate reliability. Estimates do not use data borrowing from other countries and include adjustments for consistency.

• 2021 Revision: Data received as of July 7, 2022. Estimates for 2021 are based solely on national reported data, with no survey adjustments. Declines in reported doses between 2020 and 2021 are attributed to COVID-19 disruptions but not reflected in coverage percentages. A national survey from 2022 is awaited.

• Key Vaccines Covered:

  • BCG: High coverage (e.g., 98-99%), confidence R+ or D-, with some years calibrated from surveys.
  • DTP1/DTP3: Trends show declines in recent years due to COVID-19; 2021 DTP1 coverage is 94%. GoC is R+ or D-.
  • Pol3: Estimated coverage around 85-93%; challenges due to COVID-19, with GoC R+ or D-.
  • IPV1: Coverage higher for inactivated polio vaccine; 2021 at 95%. GoC R+.
  • MCV1/MCV2: Declines noted, with MCV1 coverage for 2021 at 92%. GoC R+ or D-.
  • RCV1: Based on estimated MCV1 values, no direct rubella data considered.
  • HepB Birth Dose: Steady at 98-99%, linked to BCG estimates. GoC R+ or D-R-.
  • HepB3/Hib3: Support mixed, with declines during COVID-19; GoC R+ or D-R-.
  • PcV3/RotaC/Hib/Other: Introduced recently; data sparse, with coverage starting from 2013-2014. RotaC has no recent estimates due to unspecified reasons.

• Data Sources and Limitations:

  • Primary source is national government data, with calibrations from surveys where needed (e.g., 2010, 2014 surveys). Administrative data and surveys vary in quality.
  • GoC confidence grades: ••• High support, well-supported; • Some support; • Low or no reliable data.
  • COVID-19 pandemic impacted service delivery in 2020-2021, leading to declines in coverage.
  • All estimates are subject to uncertainty due to potential data biases and should be used cautiously.

• General Notes: Azerbaijan shows generally high coverage for basic vaccines (e.g., BCG, HepB), but recent years indicate vulnerability to service disruptions. Estimates are periodic, with the next revision expected in July 2023.