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Species Eubacterium infirmum
Name: Eubacterium infirmum Cheeseman et al. 1996
Etymology: in.fir’mum. L. neut. adj. infirmum, not strong, weak, feeble, delicate, referring to the delicate growth of the organism
Pronunciation (Latin), gender: … in-FIR-mum, neuter
Type strain: ATCC 700433; NCTC 12940; W 1471
See detailed strain information at
Conduct genome-based taxonomy at
16S rRNA gene:
Z36273
Analyse
FASTA
Valid publication:
Cheeseman SL, Hiom SJ, Weightman AJ, Wade WG. Phylogeny of oral asaccharolytic Eubacterium species determined by 16S ribosomal DNA sequence comparison and proposal of Eubacterium infirmum sp. nov. and Eubacterium tardum sp. nov. Int J Syst Bacteriol 1996; 46:957-959. 
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IJSEM list:
Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 46, part 4 of the IJSB. Int J Syst Bacteriol 1997; 47:243-244.
Nomenclatural status: validly published under the ICNP
Taxonomic status: correct name (and explicitly recommended for medical use)
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Notes:
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 2, note = "P650 = v". — 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 10 times in PubMed until 2025-06-04.
- 🙆 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 species itself.
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🧍 According to Ludwig et al. (2021), this "species, together with E. sulci, are susceptible to being classified as a new genus".
Publication:
Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218. 🇪🇸
Parent taxon: Eubacterium Prévot 1938 (Approved Lists 1980)
Assigned by:
Cheeseman SL, Hiom SJ, Weightman AJ, Wade WG. Phylogeny of oral asaccharolytic Eubacterium species determined by 16S ribosomal DNA sequence comparison and proposal of Eubacterium infirmum sp. nov. and Eubacterium tardum sp. nov. Int J Syst Bacteriol 1996; 46:957-959. 🇬🇧
Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/eubacterium-infirmumLink copied to clipboard
Record number: 783809
This LPSN page was printed on 2026-02-15 18:03:14