Name: Moraxella osloensis Bøvre and Henriksen 1967 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: os.lo.en’sis. N.L. fem. adj. osloensis, pertaining to Oslo, Norway, where the species was first recognized [probably better: oslonensis]

Gender: feminine

Type strain: A1920; ATCC 19976; CCUG 350; CIP 68.35; DSM 6998; LMG 5131; NCTC 10465

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: JN175341 Analyse FASTA

Effective publication: Bøvre K, Henriksen SD. A new Moraxella species, Moraxella osloensis, and a revised description of Moraxella nonliquefaciens. International Journal of Systematic Bacteriology 1967; 17:127-135.

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

Risk group: 2

• Notes:
  • 😷 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 = "ht". — 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 129 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.
  • 🧍 According to Ludwig et al. (2021), this "species affiliates away from the type species of the genus, and should be reclassified as Enhydrobacter". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218.

Parent taxon: Moraxella Lwoff 1939 (Approved Lists 1980)

Assigned by: Bøvre K, Henriksen SD. A new Moraxella species, Moraxella osloensis, and a revised description of Moraxella nonliquefaciens. International Journal of Systematic Bacteriology 1967; 17:127-135.

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Record number: 784286