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. 2015 Dec 21;11:303. doi: 10.1186/s12917-015-0617-0

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© Lopes Antunes 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. 5 — Biannually smoothed relative risk surfaces in Denmark from 2007 to 2010. Smoothed surfaces of the probability of swine herds being PRRSV type 1 (a) and type 2 (b) seropositive (relative risk) at a given location biannually during the period 2007 to 2010. Legend was defined based on 20 % quantiles