Name: Brachyspira murdochii (Stanton et al. 1997) Hampson and La 2006

Category: Species

Proposed as: comb. nov.

Basonym: Serpulina murdochii Stanton et al. 1997

Etymology: mur.do’chi.i. N.L. gen. masc. n. murdochii, of Murdoch, in recognition of work conducted at Murdoch University in Western Australia, where the type strain was identified

Pronunciation (Latin), gender: … mur-DO-k^hi-i, feminine

Type strain: 56-150; ATCC 51284; CIP 105832; DSM 12563

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AY312492 Analyse FASTA

Valid publication: Hampson DJ, La T. Reclassification of Serpulina intermedia and Serpulina murdochii in the genus Brachyspira as Brachyspira intermedia comb. nov. and Brachyspira murdochii comb. nov. Int J Syst Evol Microbiol 2006; 56:1009-1012. 🇦🇺

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 5 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:1719-1720.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Synonyms:

  • Name	Kind
    Serpulina murdochii Stanton et al. 1997	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "t". — 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 24 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.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Pati A, Sikorski J, Gronow S, Munk C, Lapidus A, Copeland A, Glavina Del Tio T, Nolan M, Lucas S, Chen F, et al. Complete genome sequence of Brachyspira murdochii type strain (56-150). Stand Genomic Sci 2010; 2:260-269. 🇩🇪

Parent taxon: Brachyspira Hovind-Hougen et al. 1983

Assigned by: Hampson DJ, La T. Reclassification of Serpulina intermedia and Serpulina murdochii in the genus Brachyspira as Brachyspira intermedia comb. nov. and Brachyspira murdochii comb. nov. Int J Syst Evol Microbiol 2006; 56:1009-1012. 🇦🇺

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Record number: 774158