Species ***Clostridium* *fessum***

Name: Clostridium fessum Seo et al. 2021

Category: Species

Proposed as: sp. nov.

Etymology: fes’sum. L. neut. adj. fessum, fatigued, referring to the general biochemical unreactivity of the organism

Pronunciation (Latin), gender: klos-TRI-di-um FES-sum, neuter

Type strain: JCM 32258; KCTC 15633; SNUG30386

Conduct genome-based taxonomy at

16S rRNA gene: KY992934 Analyse FASTA

Valid publication: Seo B, Jeon K, Baek I, Lee YM, Baek K, Ko G. Clostridium fessum sp. nov., isolated from human faeces. Int J Syst Evol Microbiol 2021; 71:4579. 🇰🇷

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 71, part 1 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4725.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

Notes:
- 😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
- 🎓 Name mentioned 8 times in PubMed until 2026-06-11.
- 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)

Assigned by: Seo B, Jeon K, Baek I, Lee YM, Baek K, Ko G. Clostridium fessum sp. nov., isolated from human faeces. Int J Syst Evol Microbiol 2021; 71:4579. 🇰🇷

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.16386Link copied to clipboard

Record number: 16386

This LPSN page was printed on 2026-08-18 08:50:42

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Species Clostridium fessum

Species ***Clostridium* *fessum***