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. 2019 Apr 17;69(10):1649–1656. doi: 10.1093/cid/ciz020

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© The Author(s) 2019. Published by Oxford University Press for the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Pairwise SNV between strains in the study. The blue bars highlight variations within an individual patient; the red bars highlight variations between confirmed outbreak sequences; the green bars highlight variations between epidemiologically unrelated sequences within the hospital; and the purple bars highlight variations between strains circulating in Europe in the same season. Whole-genome SNV (A) and (B) HA/NA concatenated SNV. Abbreviations: HA, haemagglutinin; NA, neuraminidase; SNV, single nucleotide variations.