Species Serpula hyodysenteriae

Name: Serpula hyodysenteriae (Harris et al. 1972) Stanton et al. 1991

Category, proposed as: species, comb. nov.

Basonym: Treponema hyodysenteriae Harris et al. 1972 (Approved Lists 1980)

Etymology: hy.o.dy.sen.te’ri.ae. Gr. masc./fem. n. hŷs (gen. hyos), hog, pig; L. fem. n. dysenteria, a flux, dysentery; N.L. gen. fem. n. hyodysenteriae, of hog dysentery. In recognition of the species as the etiologic agent of swine dysentery

Pronunciation (Latin), gender: SER-pu-la hy-o-dy-sen-TE-ri-a͡e, feminine

Type strain: ATCC 27164; B 78; CCUG 46668; NCTC 13041

Conduct genome-based taxonomy at

16S rRNA gene: M57743 Analyse FASTA

Valid publication: Stanton TB, Jensen NS, Casey TA, Tordoff LA, Dewhirst FE, Paster BJ. Reclassification of Treponema hyodysenteriae and Treponema innocens in a new genus, Serpula gen. nov., as Serpula hyodysenteriae comb. nov. and Serpula innocens comb. nov. Int J Syst Bacteriol 1991; 41:50-58. 🇺🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 41, part 1 of the IJSB. Int J Syst Bacteriol 1991; 41:457-458.

Nomenclatural status: validly published under the ICNP, illegitimate name

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Brachyspira hyodysenteriae (Harris et al. 1972) Ochiai et al. 1998

Risk group: 2

• Synonyms:

  • Name	Kind
    Treponema hyodysenteriae Harris et al. 1972 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Brachyspira hyodysenteriae (Harris et al. 1972) Ochiai et al. 1998	homotypic synonym, validly published under the ICNP
    Serpulina hyodysenteriae (Harris et al. 1972) Stanton 1992	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Serpula Stanton et al. 1991. Publication: Stanton TB, Jensen NS, Casey TA, Tordoff LA, Dewhirst FE, Paster BJ. Reclassification of Treponema hyodysenteriae and Treponema innocens in a new genus, Serpula gen. nov., as Serpula hyodysenteriae comb. nov. and Serpula innocens comb. nov. Int J Syst Bacteriol 1991; 41:50-58. 🇺🇸
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, 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 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 2026-08-13. 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 2 times in PubMed until 2026-06-11.
  • 🙅 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 species itself.
  • 🧍 However, the right type strain is the strain ATCC 27164, see American Type Culture Collection (ATCC). Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷
  • 🧍 See also: Publication: Stanton TB, Jensen NS, Casey TA, Tordoff LA, Dewhirst FE, Paster BJ. Reclassification of Treponema hyodysenteriae and Treponema innocens in a new genus, Serpula gen. nov., as Serpula hyodysenteriae comb. nov. and Serpula innocens comb. nov. Int J Syst Bacteriol 1991; 41:50-58. 🇺🇸
  • 🧍 See also: Publication: Moore WEC, Moore LVH. Index of the bacterial and yeast nomenclatural changes published in the International Journal of Systematic Bacteriology since the 1980 Approved Lists of Bacterial Names (1 January 1980 to 1 January 1992). American Society for Microbiology, Washington, 1992. 🇺🇸
  • 🧍 See also: Publication: Skerman VBD, McGowan V, Sneath PHA. Approved Lists of Bacterial Names. Amended edition. American Society for Microbiology, Washington, 1989.
  • 🧍 See also: Publication: Kinyon JM, Harris DL. Treponema innocens, a new species of intestinal bacteria and emended description of the type strain of Treponema hyodysenteriae Harris et al. Int. J. Syst. Bacteriol. 1979; 29:102-109.
  • 🧍 See also: Publication: Smibert RM. Genus III. Treponema Schaudinn 1905, 1728AL. In: Krieg NR, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 1, The Williams & Wilkins Co., Baltimore, 1984, p. 49-57.
  • 🧍 The name, Serpula hyodysenteriae (Harris et al. 1972) Stanton et al. 1991, is illegitimate because of precedence of the fungal genus Serpula [Rule 51b(4)]. Consequently, a new species designation, Serpulina hyodysenteriae (Harris et al. 1972) Stanton 1992, has been proposed by Stanton 1992. Publication: Stanton TB. Proposal to change the genus designation Serpula to Serpulina gen. nov. containing the species Serpulina hyodysenteriae comb. nov. and Serpulina innocens comb. nov. Int J Syst Bacteriol 1992; 42:189-190. 🇺🇸
  • 🧍 The type strain B78 is cited as ATCC 27164 [1, 2, 3, 4, 5] or as ATCC 27168 [6, 7]. Publication: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Parent taxon: Serpula Stanton et al. 1991

Assigned by: Stanton TB, Jensen NS, Casey TA, Tordoff LA, Dewhirst FE, Paster BJ. Reclassification of Treponema hyodysenteriae and Treponema innocens in a new genus, Serpula gen. nov., as Serpula hyodysenteriae comb. nov. and Serpula innocens comb. nov. Int J Syst Bacteriol 1991; 41:50-58. 🇺🇸

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Record number: 784876