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. 2016 Feb 10;9:81. doi: 10.1186/s13071-016-1362-3

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© Laranjo-González 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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Fig. 5 — Representation of the degree of association (OR and RR) per each risk factor identified. Only factors associated with a higher risk of infection are represented. The red line sets the point along the Y-axis where the degree of association equals 1. Legend: AP, Access to pastures; ARW, Access to risky water sources; CF, Access to potentially contaminated feed; Dairy, Dairy animals; Female, Being female; Organic, Organic farming; SM/C, Sharing machinery or hiring contractors; Defecation, Proximity to uncontrolled human defecation; Visits, Having visitors on farm