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. 2016 Jul 27;12:156. doi: 10.1186/s12917-016-0780-y

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© The Author(s). 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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Fig. 1 — The proportion of seropositive samples (a) and the sample size as the percentage of the Scandinavian wolf population (b). Triangles (a) show the proportion of seropositive samples to the sampled number of wolves each year (grey line). Solid dots (b) show the percentage of sampled wolves. The grey line (b) represents the mean number of individual wolves reported in Scandinavia with error bars representing minimum and maximum estimations [17]