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. 2021 Jun 10;33(5):939–942. doi: 10.1177/10406387211023481

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© 2021 The Author(s)

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Timeline of emergence of human-derived (above the timeline) and mink-derived (below the timeline) SARS-CoV2 spike protein N501T-G142D and N501T-G142D-F486L variants in the United States. Timeline scale is not proportional.