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

Category: Species

Proposed as: sp. nov.

Etymology: os.lo.en’sis. N.L. masc./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:
  • 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.
  • The full TRBA 466 classification is: risk group = 2, note = "ht".

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