2022-07-05-世界卫生组织-Immunization_Congo_the_2022_country_profile_24页_420kb

WHO and UNICEF Immunization Coverage Estimates for Congo: 2021 Revision

• Coverage Period: Data received as of July 7, 2022; next revision scheduled for July 15, 2023.
• Vaccines Covered: Includes BCG, DTP1, DTP3, Pol3, IPV1, MCV1, MCV2, RCV1, HepBB, HepB3, Hib3, RotaC, and YFV.
• Estimates (Coverage %): Based on national reports, surveys, or administrative data. Key trends:
  • 2021: BCG: 81%, DTP1: 81%, DTP3: 77%, Pol3: 75%, IPV1: 74%, MCV1: 68%, MCV2: 31%, RCV1 derived from MCV1, HepBB: not available, HepB3: 73%, Hib3: 73%, RotaC: 23%, YFV: 67%.
  • Challenges: Many estimates (indicated by 'D-') are data-quality challenged, e.g., due to stock-outs, inconsistent surveys, or unclear adjustments.
  • Frequent Drops: Coverage declined in 2016-2015 period due to large target population increases, and in some years due to stock-outs (e.g., vaccine shortages).
  • Survey Use: Recommended for confirmation; some surveys were ignored or inconsistent (e.g., 2014-2015 DHS/CMIC surveys), affecting reliability.
  • GoC Levels: Reflects empirical support; not a data quality judgment. Higher GoC (e.g., R+S+D+) indicates better support.
• General Observation: Immunization coverage has fluctuated over the years, with data quality concerns evident, and estimates should be interpreted cautiously based on the intended use.