2023-07-16-世界卫生组织-Immunization_Seychelles_2023_country_profile_16页_348kb

Seychelles Immunization Coverage Summary (UNICEF/WHO 2022)

Seychelles maintains consistently high immunization coverage rates across all vaccine types, with most metrics above 97% from 2011 to 2022. Coverage data, derived mainly from national reports and estimates using rigorous methodologies, demonstrated unwavering performance.

Notable Highlights:

• High consistency in reported coverage figures across multiple vaccine types during most years (e.g., Pol3, BCG), exceeding 97% annually.
• Minor fluctuations occurred periodically (e.g., DTP3: approximately 94-99%; MCV2, HepB3, Hib3: around 94-99%).
• Rotavirus vaccination (RotaC) and Pneumococcal conjugate vaccine (PcV3) were introduced in 2017 and 2018, respectively, attainably high coverage rates shortly after implementation, except for early PcV3 estimates.

Key Considerations:

• Official and Administrative coverage data nearly always align, indicating high reporting parsimony, despite confidence levels remaining moderate (R+ D+, R+).
• The GoC ratings (••• or ••) reflect reliance on reported data with recalculated denominators, lacking high-quality independent surveys recently, thus subjecting estimates to uncertainty.
• Recommendations are reiterated to adopt higher-quality household surveys to strengthen data reliability, especially for young children as the years progress.

Concluding Notes:

Seychelles sustains very robust immunization coverage, ensuring strong national infant and childhood protection across vaccine-preventable diseases. However, data reliability remains tentative due to the absence of recent verified surveys. Continuous efforts are needed to enhance statistical methods for immunization monitoring.