What question did this study set out to answer?

To address allegations regarding ethical compliance in the research on Parabacteroides timonensis.

February 21, 2026Open Access

EXPRESSION OF CONCERN: Taxonogenomics Description of Parabacteroides timonensis sp. nov. Isolated from a Human Stool Sample

Key Points

To address allegations regarding ethical compliance in the research on Parabacteroides timonensis.
Review of ethical compliance regarding informed consent for vulnerable populations.
Assessment of the study's adherence to French legal requirements for human research.
Concerns raised about informed consent processes in the original study.
Ongoing investigation into potential ethical violations.

Abstract

EXPRESSION OF CONCERN : M. Bilen, M.D.M. Fonkou, S. Khelaifia, E. Tomei, F. Cadoret, Z. Daoud, N. Armstrong, F. Bittar, P.‐E. Fournier, D. Raoult, and G. Dubourg, “ Taxonogenomics Description of Parabacteroides timonensis sp. nov. Isolated from a Human Stool Sample,” Microbiology Open 8, no. 4 (2019): e00702, https://doi.org/10.1002/mbo3.702 . This Expression of Concern is for the above article, published online on 11 October 2018 in Wiley Online Library ( wileyonlinelibrary.com ), and has been issued by John Wiley & Sons Ltd. The Expression of Concern has been agreed due to questions raised about the study's adherence to French legal and ethical requirements for research involving human subjects, including questions regarding proper informed consent for research involving vulnerable populations. The investigation into these concerns is ongoing. Therefore, the journal has decided to issue an Expression of Concern to inform and alert the readers.

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