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. 2015 Sep 4;46(1):90. doi: 10.1186/s13567-015-0242-8

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© Lahuerta-Marin 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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Kaplan Meier survival estimates of time to subsequent positive skin-test, by Exposure (Gamma negative, Gamma positive). There was a significant increased future risk of animals failing a future skin-test for bovine tuberculosis if they tested positive to an interferon gamma test during 2004-2010 using data from a cohort of cattle from Northern Ireland.