Name: Actinobacillus muris Bisgaard 1988

Category: Species

Proposed as: sp. nov.

Etymology: mu’ris. L. masc./fem. n. mus, the mouse; L. gen. masc./fem. n. muris, of the mouse

Pronunciation, gender: MU-ris, masculine

Type strain: 80-443D; Ackerman 80-443D; ATCC 49577; CCUG 16938; CCUG 28285; CCUG 28285 B; CIP 103439; DSM 22206; NCTC 12432

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF024526 Analyse FASTA

Effective publication: Bisgaard M. Actinobacillus muris sp. nov. isolated from mice. Acta Pathol. Microbiol. Immunol. Scand. Sect. B 1986; 94:1-18.

IJSEM list: Anonymous. Validation list no. 25. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1988; 38:220-222.

Nomenclatural status: validly published under the ICNP

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

Correct name: Muribacter muris (Bisgaard 1988) Nicklas et al. 2015

Risk group: 2

• Synonyms:

  • Name	Kind
    Muribacter muris (Bisgaard 1988) Nicklas et al. 2015	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Actinobacillus muris 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 Actinobacillus.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human and animal pathogen - biological class of risk animal: 2". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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 2023-10-29. The full classification is: risk group = 1. — 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 12 times in PubMed until 2025-06-04.
  • 🙅 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.
  • 🧍 Actinobacillus muris Bisgaard 1988 was previously known as Bisgaard taxon 12. Publication: Bisgaard M. Isolation and characterization of some previously unreported taxa from poultry with phenotypical characters related to Actinobacillus-an Pasteurella species. Acta Pathol Microbiol Immunol Scand B 1982; 90:59-67.

Parent taxon: Actinobacillus Brumpt 1910 (Approved Lists 1980)

Assigned by: Bisgaard M. Actinobacillus muris sp. nov. isolated from mice. Acta Pathol. Microbiol. Immunol. Scand. Sect. B 1986; 94:1-18.

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Record number: 783284