Introduction: Argentina authorized COVID-19 vaccination for adolescents 12 years and older in August 2021, and then for children three years and older in October 2021. Children aged 6 months-2 years received a two-dose regimen beginning July 2022.
Objective: This study aims to analyze the impact of COVID-19 vaccination among children aged 0-17, considering vaccination status and mortality for the 2020-2022 period.
Methods: We conducted a population-level analysis examining all-cause mortality, COVID-19 cases, deaths, and vaccination records. We compared outcomes with child mortality for diseases for which vaccination is compulsory, before and after each vaccine rollout.
Results: A decrease in COVID-19-related deaths was observed in 2022 for pediatric age groups (3-11 and 12-17) with relatively higher vaccination coverage. However, no decrease was observed for the 0-2 year old age group, which had the longest delay in access to immunization and lowest vaccination coverage. When compared to unvaccinated populations in 2022, we observe an 8-15-fold reduction in cumulative death rates for pediatric populations vaccinated with 1 or more doses, and a 16-18-fold reduction for those vaccinated with 2 or more doses. Historical analysis shows that for diseases for which vaccination is now compulsory in many countries, pre-vaccine-rollout mortality was lower than COVID-19 deaths during 2020-2022.
Conclusions And Relevance: SARS-CoV-2 immunization was associated with reduced COVID-19 deaths for children and adolescents in Argentina. Our findings suggest that greater efforts should be undertaken to ensure wider COVID-19 vaccine coverage in children and adolescents, especially infants.
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