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Do we need COVID-19 vaccine boosters?

November 29, 2021

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Several safe and effective vaccines have been developed and approved against the novel severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) virus in a remarkably short duration of time. Although vaccines have been shown to provide robust protection against SARS-CoV-2, studies have shown that vaccine-induced immunity wanes over time. The decline in vaccine-induced immunity with time, along with the emergence of SARS-CoV-2 variants, has highlighted the need for booster doses of coronavirus disease 2019 (COVID-19) vaccines.

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