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. 2016 Jan 11;47:17. doi: 10.1186/s13567-015-0293-x

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© Sinn et al. 2016

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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Histological lung lesions. For each animal, a histopathological lung lesion score was calculated by considering the degree of PRRSV-associated lesions in every lung lobe. Histological lesion scores are presented A in a table and B as a box-plot. Mean score (±standard deviation) and individual scores for each animal are displayed for all groups. B Whiskers represent maximum and minimum values. Letters indicate significant differences (p < 0.01) from control group (a), group GER09-613 (b), group AUT14-440 (c) and group AUT13-883 (d).