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. 2015 Oct 24;11:272. doi: 10.1186/s12917-015-0584-5

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© Lyoo et al. 2015

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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Fig. 1 — Gross lesion and histopathologic lesion of a pig from the first case farm affected infected by type 1 PRRSV infection. Gross lung lesion was characterized by diffusely mottled, red to purple, and rubbery areas of pneumonia (a). Histologically, purulent bronchopneumonia by infiltration of monocytes, lymphocytes, and neutrophils and sever congestion was seen in the lung (b)