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. 2019 Feb 18;9:2175. doi: 10.1038/s41598-019-38628-1

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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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eutB favors AIEC strain LF82 gut colonization in mice. Mice (n = 10) were orally co-infected with 0.5 × 10⁹ of the LF82 strain and 0.5 × 10⁹ of the LF82ΔeutB mutant. (A) Feces were collected three days post-infection, and LF82 and LF82ΔeutB strains were counted. (B) Ileal and colonic mucosal-associated LF82 and LF82ΔeutB bacteria were quantified three days post-infection. Boxes are extended from the 25^th to 75^th percentiles. All the values and the median are represented. (C) Competitive index between LF82 and LF82ΔeutB bacteria in feces, ileum and colon collected three days post-infection. Values are means ± SEM. Statistical analysis was performed with the Mann-Whitney test; *p < 0.05; **p < 0.01.