Name: Weeksella zoohelcum Holmes et al. 1987

Category: Species

Proposed as: sp. nov.

Etymology: zo.o.hel.cum. Gr. neut. n. zôon, an animal; Gr. neut. n. helkos, a wound; N.L. gen. neut. pl. n. zoohelcum, of animal wounds, because strains are isolated from cat and dog bites and scratches [probably better: zoohelcorum]

Gender: feminine

Type strain: ATCC 43767; CCUG 12568; CCUG 30535; CIP 103041; D658; DSM 16783; IFO 16014; JCM 21249; LMG 12996; LMG 8351; NBRC 16014; NCTC 11660

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB681029 Analyse FASTA

Effective publication: Holmes B, Steigerwalt AG, Weaver RE, Brenner DJ. Weeksella zoohelcum sp. nov. (formerly group IIj), from human clinical speciemens. Syst. Appl. Microbiol. 1986; 8:191-196.

IJSEM list: Anonymous. Validation list no. 23. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1987; 37:179-180.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Bergeyella zoohelcum (Holmes et al. 1987) Vandamme et al. 1994

Risk group: 2

• Synonyms:

  • Name	Kind
    Bergeyella zoohelcum (Holmes et al. 1987) Vandamme et al. 1994	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Weeksella zoohelcum is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Weeksella.
  • 😷 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, note = "Z".
  • 🎓 Name mentioned 11 times in PubMed until 2024-03-28.
  • 🧍 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.

Parent taxon: Weeksella Holmes et al. 1987

Assigned by: Holmes B, Steigerwalt AG, Weaver RE, Brenner DJ. Weeksella zoohelcum sp. nov. (formerly group IIj), from human clinical speciemens. Syst. Appl. Microbiol. 1986; 8:191-196.

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Record number: 785188