Name: Alloiococcus otitis Aguirre and Collins 1992

Category: Species

Proposed as: sp. nov.

Etymology: o.ti.tis. N.L. fem. n. otitis, of ear inflammation (sic) [probably better: otitidis]

Gender: masculine

Type strain: 7760; ATCC 51267; CCUG 32997; CIP 103508; DSM 7252; IFO 15545; NBRC 15545; NCFB 2890; NCIMB 702890; NCTC 13840

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X59765 Analyse FASTA

Valid publication: Aguirre M, Collins MD. Phylogenetic analysis of Alloiococcus otitis gen. nov., sp. nov., an organism from human middle ear fluid. Int J Syst Bacteriol 1992; 42:79-83.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 42, part 1 of the IJSB. Int J Syst Bacteriol 1992; 42:328-329.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 🥇 Nomenclatural type of the genus Alloiococcus Aguirre and Collins 1992. Publication: Aguirre M, Collins MD. Phylogenetic analysis of Alloiococcus otitis gen. nov., sp. nov., an organism from human middle ear fluid. Int J Syst Bacteriol 1992; 42:79-83.
  • 😷 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 17 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.

Parent taxon: Alloiococcus Aguirre and Collins 1992

Assigned by: Aguirre M, Collins MD. Phylogenetic analysis of Alloiococcus otitis gen. nov., sp. nov., an organism from human middle ear fluid. Int J Syst Bacteriol 1992; 42:79-83.

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Record number: 773087