Preliminary Estimates of Effectiveness of Monovalent mRNA Vaccines in Preventing Symptomatic SARS-CoV-2 Infection Among Children Aged 3-5 Years - Increasing Community Access to Testing Program, United States, July 2022-February 2023

Published on February 16, 2023

This report describes up to 4 months of protection against COVID-19 among children aged 3-5 and 3-4 year who received monovalent primary series vaccinations.

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