Global COVID-19 vaccination uptake across the emergency and early post-emergency periods, 2021-2024
This paper analyzes global COVID-19 vaccination data from 2021 to 2024, revealing that while primary series coverage reached high levels among older adults and health workers by the end of 2023, significant disparities persisted across income groups and regions, with lower booster uptake and limited 2024 coverage highlighting the urgent need for sustainably financed adult immunization platforms.