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. 2021 Mar 25;9(4):677. doi: 10.3390/microorganisms9040677

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Phylogeny of sequenced B.1.1.7 cases in Switzerland. (A) Geographic distribution through Switzerland and (B) phylogenetic relationship of 675 genomes dating between 30 November 2020 and 11 February 2021 from the Geneva University Hospitals (n = 574), University Hospital Lausanne (n = 44), University Hospital Basel (n = 70), University of Bern (n = 10), University of Zurich (n = 14), and ETH Zurich (n = 20), Center for Laboratory Medicine St. Gallen (n = 1), Philip Morris International (n = 6). X-Axis scales to time. (C) Zoom into an exemplar, possible cryptic transmissions within a cluster, and single introductions, scale by mutations distance to the reference Wuhan/Hu1-1.