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. 2017 Jan 31;17:111. doi: 10.1186/s12879-017-2201-7

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© The Author(s). 2017

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 — Plasma cytokine and chemokine concentrations in HIV-infected and uninfected patients with syphilis by syphilis stage at baseline and 6 month visit. Cytokine levels in each group (pg/ml, Y axis log scale) are shown as median and interquartile range (box), with 10th and 90th percentiles (whiskers). Letters (a) and (b) above the box-plot indicate statistically significant differences (P < 0.05) as compared with the HIV-infected controls and the comparison between HIV-infected and uninfected PSS groups, respectively. Abbreviations. PSS HIV+: Primary Secondary Syphilis HIV-infected, LS HIV+: Latent Syphilis HIV-infected, PSS HIV-: Primary Secondary Syphilis HIV-uninfected