Name: Bordetella holmesii Weyant et al. 1995

Category: Species

Proposed as: sp. nov.

Etymology: hol.mes’i.i. N.L. gen. masc. n. holmesii, of Holmes, named in honor of B. Holmes

Gender: feminine

Type strain: ATCC 51541; CCUG 34073; CDC F5101; CIP 104394; DSM 13416; LMG 15945; NCTC 12912

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KF601905 Analyse FASTA

Effective publication: Weyant RS, Hollis DG, Weaver RE, Amin MF, Steigerwalt AG, O'Connor SP, Whitney AM, Daneshvar MI, Moss CW, Brenner DJ. Bordetella holmesii sp. nov., a new gram-negative species associated with septicemia. J Clin Microbiol 1995; 33:1-7.

IJSEM list: Anonymous. Validation list no. 54. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1995; 45:619-620.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 🧬 The phylogenomic assignment score of this taxon is 0.07205 (N = 30).
  • 😷 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. — 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 103 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.
  • 🧍 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 2022; 168:0.
  • 🧍 Bordetella holmesii Weyant et al. 1995 was previously known as CDC nonoxidizer group 2 (NO-2). 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.

Parent taxon: Bordetella Moreno-López 1952 (Approved Lists 1980)

Assigned by: Weyant RS, Hollis DG, Weaver RE, Amin MF, Steigerwalt AG, O'Connor SP, Whitney AM, Daneshvar MI, Moss CW, Brenner DJ. Bordetella holmesii sp. nov., a new gram-negative species associated with septicemia. J Clin Microbiol 1995; 33:1-7.

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Record number: 774102