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. 2021 Dec 14;12:781797. doi: 10.3389/fmicb.2021.781797

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Copyright © 2021 Muggeo, Perotin, Brisebarre, Dury, Dormoy, Launois, Ancel, Mulette, de Champs, Deslée and Guillard.

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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Prevalence of the main bacteria in airway microbiota in the sputa of patients. (A) Bacteria prevalence (note: bacteria with less than 10% frequency for the three clusters are not listed). (B) Anaerobic bacteria prevalence. (C) Enterobacterales prevalence (Citrobacter braakii, Citrobacter freundii, Citrobacter koseri, Enterobacter cloacae, Escherichia coli, Klebsiella oxytoca, Morganella morganii, Proteus mirabilis, and Raoultella ornithinolytica). Chi-square test. *p < 0.05, ***p < 0.001. NS, not significant.