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Dispersal patterns and influence of air travel during the global expansion of SARS-CoV-2 variants of concern

7 Jun 2023

Abstract excerpt

The Alpha, Beta, and Gamma SARS-CoV-2 variants of concern (VOCs) co-circulated globally during 2020 and 2021, fueling waves of infections. They were displaced by Delta during a third wave worldwide in 2021, which, in turn, was displaced by Omicron in late 2021. In this study, we use phylogenetic and phylogeographic methods to reconstruct the dispersal patterns of VOCs worldwide. We find that source-sink dynamics...

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PMID: 37413988
DOI: 10.1016/j.cell.2023.06.001

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