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. 2020 Jan 30;11:53. doi: 10.3389/fmicb.2020.00053

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Copyright © 2020 Wang, Xiong, Zhao, Zhang, Zhang, Xu and Ma.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The α-diversity of gut microbiota at the operational taxonomic unit (OTU) level, which was measured by (A) ACE, (B) Shannon index, and (C) Shannon evenness. Statistical significance was calculated between the multi-drug-resistant tuberculosis (MDR-TB) treated group and untreated group 1 and between the MDR-TB recovered group and untreated group 2 (Mann–Whitney U test). *p < 0.05, ***p < 0.001.