Name: Neisseria weaveri Holmes et al. 1993

Category: Species

Proposed as: sp. nov.

Etymology: wea’ve.ri. N.L. gen. masc. n. weaveri, of Weaver, named in honor of Robert E. Weaver

Pronunciation (Latin), gender: … WEA-we-ri, feminine

Type strain: ATCC 51410; CCUG 4007; CIP 103940; DSM 17688; ISL775/91; LMG 5135; NCTC 12742

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KM610326 Analyse FASTA

Valid publication: Holmes B, Costas M, On SL, Vandamme P, Falsen E, Kersters K. Neisseria weaveri sp. nov. (formerly CDC group M-5), from dog bite wounds of humans. Int J Syst Bacteriol 1993; 43:687-693. 🇬🇧

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 43, part 4 of the IJSB. Int J Syst Bacteriol 1994; 44:184.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Synonyms:

  • Name	Kind
    Neisseria weaveri Andersen et al. 1993	heterotypic synonym, validly published under the ICNP, illegitimate name, later homonym

• Emendations:
  • Yi and Chun 2015 Yi H, Chun J. Neisseria weaveri Andersen et al. 1993 is a later heterotypic synonym of Neisseria weaveri Holmes et al. 1993. Int J Syst Evol Microbiol 2015; 65:463-464. 🇰🇷 Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 2 of the IJSEM. Int J Syst Evol Microbiol 2015; 65:1397-1399.
    Notes:
    • 🫂 Emendation accompanied by a proposal regarding the synonymy of the species.

• Notes:
  • 🔧 This taxon name is a replacement for Neisseria weaveri Andersen et al. 1993.
  • 🧬 The phylogenomic assignment score of this taxon is -0.02336 (N = 7).
  • 😷 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. — 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 19 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 (Reading) 2022; 168:0. 🇬🇧
  • 🧍 Neisseria weaveri Andersen et al. 1993 was previously known as CDC group M-5. Publication: Andersen BM, Steigerwalt AG, O'Connor SP, Hollis DG, Weyant RS, Weaver RE, Brenner DJ. Neisseria weaveri sp. nov., formerly CDC group M-5, a gram-negative bacterium associated with dog bite wounds. J Clin Microbiol 1993; 31:2456-2466. 🇺🇸
  • 🧍 Neisseria weaveri Holmes et al. 1993 was previously known as CDC group M-5. — Neisseria weaveri Holmes et al. 1993 has priority over Neisseria weaveri Andersen et al. 1993. — According to Yi et al. 2012, Neisseria weaveri Holmes et al. 1993 is an earlier heterotypic synonym of Neisseria weaveri Andersen et al. 1993. Publication: Yi H, Cho YJ, Yoon SH, Park SC, Chun J. Comparative genomics of Neisseria weaveri clarifies the taxonomy of this species and identifies genetic determinants that may be associated with virulence. FEMS Microbiol Lett 2012; 328:100-105. 🇰🇷

Parent taxon: Neisseria Trevisan 1885 (Approved Lists 1980)

Assigned by: Holmes B, Costas M, On SL, Vandamme P, Falsen E, Kersters K. Neisseria weaveri sp. nov. (formerly CDC group M-5), from dog bite wounds of humans. Int J Syst Bacteriol 1993; 43:687-693. 🇬🇧

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Record number: 778640