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. 2022 Feb 1;14(2):303. doi: 10.3390/v14020303

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© 2022 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 (https://creativecommons.org/licenses/by/4.0/).

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Phylogenetic tree generated using the Maximum Likelihood method with 3000-replicate bootstrap resampling, with 65 VP1-2A region reference sequences from genotype IA isolates from the GenBank. The number in the tree represents bootstraps. The viral European and Asian outbreak strains are marked with red rhombus (♦). The study sequences are marked with: 2013, black triangle (▲); 2014, blue triangle (▲); 2018, black dot (●); and 2019, blue dot (●). All study sequences are available on the GenBank; access numbers are available in Table S2. Sequences from 2015, black square (■), all previously published [15]; 2017, grey dot (●), two sequences published previously [15].