2022-07-06-世界卫生组织-Immunization_San_Marino_2022_country_profile_16页_359kb

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

Background

The report details WHO and UNICEF estimates of immunization coverage for San Marino in 2021, based on data received as of July 7, 2022. These estimates cover multiple vaccines for the period 2010 to 2021 and reflect coverage for specific doses among infants and children, using sources like administrative data and official assessments.

Methods

• Estimates are country-specific, relying on reported data, administrative coverage calculations, and official assessments without borrowing from other countries.
• Grade of Confidence (GoC) is assigned: ••• for well-supported estimates, •• for those with supporting data, and • for challenged or insufficient data.
• Data quality varies, and estimates should be used with caution due to potential biases and lack of surveys.

Key Findings

• Vaccines with Data:
  • BCG, DTP1/DTP3, Pol3, IPV1, MCV, RCV1, HepB (hepatitis B doses), Hib, and RotaC/HepB3/PcV3 coverage showed ranges from approximately 85% to 94% for some years.
  • High coverage maintained for many vaccines (e.g., DTP1 at ~91-94%), with fluctuations attributed to small birth cohorts or data collection issues.
  • New vaccines like PcV3 (pneumococcal) showed improving coverage post-introduction (e.g., 53-82% from 2016).
  • HepB3 and Hib3 had lower coverage in later years but data challenges noted.
  • Many vaccines had limited or no survey data, relying heavily on administrative reports.
• Consistency: San Marino's estimates were often similar to administrative data but reported official coverage varied, with some years showing gaps or stock-outs.

Limitations

• Data sources are primarily administrative and official, with limited survey support, leading to potential inaccuracies.
• GoC levels indicate variability in support: many estimates are challenged (•), highlighting data reliability concerns.
• No uncertainty measures provided; estimates are prone to bias and should be assessed carefully for specific uses.

Overall Assessment

San Marino demonstrated high immunization coverage for most vaccines in the reviewed period, but data quality and consistency remain issues. Estimates are cautious and require context-specific evaluation.