2022-07-05-世界卫生组织-Immunization_Marshall_Islands_2022_country_profile_17页_392kb

• Immunization coverage estimates for the Marshall Islands are provided by WHO and UNICEF, covering vaccines such as BCG, DTP, Polio (Pol3), IPV, Measles-Containing (MCV1/MCV2), Rubella-Containing (RCV1), Hepatitis B (HepBB/HepB3), Hib, Rotavirus (RotaC), and Pneumococcal Conjugate Vaccine (PCV3). These estimates range from 2003 to 2021 and are based on national data, interpolated surveys, and administrative reports.

• Coverage levels vary significantly by vaccine and year, with fluctuations often explained by small birth cohorts leading to annual data oscillations. For example, BCG and HepB coverage generally stayed above 80%, while vaccines like RotaC and PCV3 show lower and more variable estimates, such as 24-68% in recent years.

• The Grade of Confidence (GoC) reflects the reliability of data, supporting estimates with administrative records or surveys but often challenged by factors like data inaccuracies, stock-outs (e.g., DTP-IPV-Hib), or inconsistent trends. Post-2015, some estimates incorporate independent recalculations and surveys, but uncertainty remains high in many cases.

• Trends indicate cautious improvement in some areas, with notable changes due to programmatic issues, supply disruptions, or methodological reviews, but overall coverage faces ongoing challenges reflecting the small population size and data limitations. These estimates should be used with caution, as acknowledged by WHO and UNICEF, due to potential biases and lack of classical uncertainty measures.

The data is available on WHO and UNICEF websites for further details.