Association of Homologous and Heterologous Vaccine Boosters With COVID-19 Incidence and Severity in Singapore.

Tan, Sharon Hui Xuan; Pung, Rachael; Wang, Lin-Fa; Lye, David Chien; Ong, Benjamin; Cook, Alex R; Tan, Kelvin Bryan · JAMA · 2022

retrospective_cohort · Level III

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Abstract

This study estimates SARS-CoV-2 infections and disease severity with the receipt of a booster and by type of booster.

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