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. 2019 Feb 13;9:1978. doi: 10.1038/s41598-019-38547-1

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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T-cell activation magnitudes in HIV+ ART+ were positively correlated with proportion of total Treg-cells and indirectly with functional Treg (%Treg CD39) and Th17/Treg levels. Correlations found among HIV+ ART+ patients. (a) Th17/Treg ratio versus (vs) %CD4+ T-cell activation (left panel) and vs %CD8+ T-cell activation (right panel); (b) %Treg vs %CD4+ T-cell activation (left panel) and vs %CD8+ T-cell activation (right panel) and (c) %Treg CD39+ vs %CD8+ T-cell activation. Symbols represent individual patients: HIV+ ART+ (◉). All r and p values correspond to Spearman’s correlations.