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Species Streptococcus hansenii
Name: Streptococcus hansenii Holdeman and Moore 1974 (Approved Lists 1980)
Etymology: han.se’ni.i. N.L. gen. masc. n. hansenii, of Hansen, named after P. Arne Hansen, a Danish-American bacteriologist
Pronunciation, gender: han-SE-ni-i, masculine
Type strain: ATCC 27752; CIP 104219; DSM 20583; JCM 14655
Conduct genome-based taxonomy at
16S rRNA gene:
AB534168
Analyse
FASTA
Effective publication:
Holdeman LV, Moore WEC. New genus, Coprococcus, twelve new species, and emended descriptions of four previously described species of bacteria from human feces. International Journal of Systematic Bacteriology 1974; 24:260-277. 
IJSEM list:
Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
Nomenclatural status: validly published under the ICNP
Taxonomic status: synonym (and not recommended for medical use)
Correct name: Blautia hansenii (Holdeman and Moore 1974) Liu et al. 2008
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Synonyms:
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Name Kind Blautia hansenii (Holdeman and Moore 1974) Liu et al. 2008 homotypic synonym, validly published under the ICNP Ruminococcus hansenii (Holdeman and Moore 1974) Ezaki et al. 1994 homotypic synonym, validly published under the ICNP
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Notes:
- ❗ Streptococcus hansenii is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Streptococcus.
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. 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 4 times in PubMed until 2025-06-04.
- 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
Parent taxon: Streptococcus Rosenbach 1884 (Approved Lists 1980)
Assigned by:
Holdeman LV, Moore WEC. New genus, Coprococcus, twelve new species, and emended descriptions of four previously described species of bacteria from human feces. International Journal of Systematic Bacteriology 1974; 24:260-277.
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Record number: 781345
This LPSN page was printed on 2026-01-19 18:38:59