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. 2016 Feb 11;15:16. doi: 10.1186/s12940-016-0113-4

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© Krueger and Wade. 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 — Flow charts illustrating derived study populations for each pathogen of interest: a) Helicobacter Pylori; b)Toxoplasma gondii c) Hepatitis B Virus. NHANES 1999-2012