2023-07-16-世界卫生组织-Immunization_Vanuatu_2023_country_profile_18页_376kb

报告摘要

Immunization Coverage Estimates for Vanuatu: WHO and UNICEF 2022 Revision

Overview

WHO and UNICEF provide country-specific estimates of national immunization coverage for Vanuatu based on data received as of June 26, 2023. The 2023 revision includes estimates from 2011 to 2022 for various vaccines, considering administrative data, surveys, and calibration with historical trends. The estimates are subject to a grade of confidence (GoC) indicating data reliability.

Methods and Data Sources

Estimates are derived from reported administrative data (limited in completeness), national survey data (e.g., MICS surveys, vaccination coverage surveys), and empirical adjustments.
Key vaccines covered: BCG (Birth Dose), DTP1/3 (Diphtheria/Tetanus/Pertussis vaccines), Pol3 (Polio), HepB1/3 (Hepatitis B), Hib3 (Hib), RCV1 (Rubella), RotaC (Rotavirus), PcV3 (Pneumococcal).
Grade of confidence (GoC) reflects empirical support:
- ••• (Well supported): Strong data support.
- •• (Moderate support): Some data but potential challenges.
- • (Limited support): Data is weak or unreliable.
COVID-19 pandemic may have contributed to declines in coverage in 2020-2021.
Surveys (e.g., 2023 MICS survey ongoing) and international data sources are used to adjust estimates.

Key Findings for 2011-2022

BCG Coverage: Generally high (75-98%), with post-pandemic stabilization; incomplete reporting noted.
DTP1/3 Coverage: High (76-95%), slight declines in some years post-2020; data inconsistent in calibration.
Pol3 Coverage: High around 2000-2015, dropped to 55-75% in 2019-2022 due to disruptions.
HepB1/3 Coverage: Around 50-80% for HepB, generally stable.
Hib3 Coverage: Introduced post-2011; coverage around 50-90%.
RCV1 Coverage: Derived from MCV1 estimates; limited direct data.
RotaC and PcV3: Newer vaccines with recent introduction; RotaC coverage low in early years, PcV3 data from 2021 onward.