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. 2018 Feb 12;163(6):1463–1468. doi: 10.1007/s00705-018-3724-y

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Four subtypes of BKPyV identified by phylogenetic analysis. The phylogenetic tree was constructed using MEGA version 7.0.20. Bootstrap replicates were performed 1,000 times (only the numbers at nodes above 50 are shown). The types (I, II, III, and IV) and subtypes (IV-a1, IV-a2, IV-b1, IV-b2, IV-c, Ia, Ib, and Ic) are indicated