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. 2021 Feb 4;11:3040. doi: 10.1038/s41598-021-82738-8

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© The Author(s) 2021

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Villous height and crypt depth (VH:CD) ratio in the duodenum, proximal jejunum, middle jejunum, distal jejunum, and ileum. Blue, red, green, and purple bars represent PDCoV-inoculated, PEDV-inoculated, co-inoculated, and control groups. Solid and open bars represent 3- and 5-days post-inoculation (dpi), respectively. Different lower-case letters indicate significant differences between each group, each dpi, and each anatomical section of the small intestine (p < 0.05). Values of mean ± standard deviation (SD) of each group, and each dpi are presented in a table under the graph.