Name: Campylobacter jejuni (Jones et al. 1931) Véron and Chatelain 1973 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Vibrio jejuni" Jones et al. 1931

Etymology: je.ju’ni. N.L. gen. neut. n. jejuni, of the jejunum

Pronunciation (Latin), gender: kam-py-lo-BAK-ter je-JU-ni, masculine

Type strain: ATCC 33560; CCUG 11284; CIP 70.2; DSM 4688; LMG 8841; NBIMCC 8652; NBIMCC 8936; NCTC 11351

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59298 Analyse FASTA

Effective publication: Véron M, Chatelain R. Taxonomic study of the genus Campylobacter Sebald and Véron and designation of the neotype strain for the type species, Campylobacter fetus (Smith and Taylor) Sebald and Véron. International Journal of Systematic Bacteriology 1973; 23:122-134.

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: correct name (and explicitly recommended for medical use)

Risk group: 2

• Synonyms:

  • Name	Kind
    "Vibrio jejuni" Jones et al. 1931	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.04805 (N = 1).
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "default: 2 human and animal pathogen - biological class of risk animal: 2; doylei: 2 human pathogen; jejuni: 2 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: 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. — The risk group for Sweden has been imported on 2024-02-05. 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". — The risk group for United Kingdom has been imported on 2024-01-31. The full classification is: risk group = 2. — The risk group for United States has been imported on 2024-02-09. The full classification is: risk group = 2. — 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 9717 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 species itself.
  • 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧
  • 🧍 See also Dingle et al. (2001). Publication: Dingle KE, Colles FM, Wareing DR, Ure R, Fox AJ, Bolton FE, Bootsma HJ, Willems RJ, Urwin R, Maiden MC. Multilocus sequence typing system for Campylobacter jejuni. J Clin Microbiol 2001; 39:14-23. 🇬🇧
  • 🧍 Members of the Subcommittee on the taxonomy of Campylobacter and related bacteria had noted that the specific epithet jejuni was erroneously formed. This required correction of the spelling of the epithet or, alternatively, correction of the etymology. The subcommittee members reached a consensus to correct the etymology of the specific epithet jejuni. The correct etymology is: je.ju'ni. N.L. gen. neut. n. jejuni, of the jejunum. Publication: Vandamme P, On SL. Recommendations of the subcommittee on the taxonomy of Campylobacter and related bacteria. Int J Syst Evol Microbiol 2001; 51:719-721. 🇧🇪

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Campylobacter jejuni subsp. doylei Steele and Owen 1988	validly published under the ICNP	correct name
    Campylobacter jejuni subsp. jejuni (Jones et al. 1931) Steele and Owen 1988	validly published under the ICNP	correct name

Parent taxon: Campylobacter Sebald and Véron 1963 (Approved Lists 1980)

Assigned by: Véron M, Chatelain R. Taxonomic study of the genus Campylobacter Sebald and Véron and designation of the neotype strain for the type species, Campylobacter fetus (Smith and Taylor) Sebald and Véron. International Journal of Systematic Bacteriology 1973; 23:122-134.

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Record number: 783593