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. 2019 Aug 29;9:12598. doi: 10.1038/s41598-019-49005-3

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Grouped scatter plot of each sample with PC1 and PC3 (a) and PC2 and PC3 (b). Points are classified according to the different viruses analysed. Mostly good separation of each group is shown (except for Coxsackie A7 and A9, where worse separation is obtained).