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Covid Natural Immunity Confirmed

THE LANCET JOURNAL Understanding the level and characteristics of protection from past SARS-CoV-2 infection against subsequent re-infection, symptomatic COVID-19 disease, and severe disease is essential for predicting future potential disease burden, for designing policies that restrict travel or access to venues where there is a high risk of transmission, and for informing choices about when to receive vaccine doses. We aimed to systematically synthesise studies to estimate protection from past infection by variant, and where data allow, by time since infection.

Published: February 16, 2023 Past SARS-CoV-2 infection protection against re-infection: a systematic review and meta-analysis

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