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A living evidence approach to variants of concern (VOC) and COVID-19 vaccine effectiveness

Given the continued evolution of the pandemic, updated information is crucial for guiding policy decisions and prioritizing research efforts. This living review evaluates the effectiveness of WHO-approved COVID-19 vaccines (Pfizer–BioNTech, Moderna, Oxford–AstraZeneca, and Janssen) in protecting against Long Covid outcomes caused by variants of concern in adults.

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©2021 by KSAU Ottawa

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