Name: Oligella ureolytica Rossau et al. 1987

Category: Species

Proposed as: sp. nov.

Etymology: u.re.o.ly’ti.ca. Chem. fem. n. urea, urea; N.L. adj. lyticus -a -um, able to loose, able to dissolve; from Gr. adj. lytikos -ê -on, able to loosen, able to dissolve; N.L. fem. adj. ureolytica, dissolving (hydrolyzing) urea

Pronunciation (Latin), gender: … u-re-o-LY-ti-ka, feminine

Type strain: ATCC 43534; CCUG 1465 AA; CDC C379; CIP 103114; DSM 18253; LMG 6519

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ251912 Analyse FASTA

Valid publication: Rossau R, Kersters K, Falsen E, Jantzen E, Segers P, Union A, Nehls L, De Ley J. Oligella, a new genus including Oligella urethralis comb. nov. (formerly Moraxella urethralis) and Oligella ureolytica sp. nov. (formerly CDC group IVe): relationship to Taylorella equigenitalis and related taxa. Int. J. Syst. Bacteriol. 1987; 37:198-210.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 😷 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 = 1, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 1, note = "P650 = v". — 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 18 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. 🇬🇧
  • 🧍 Oligella ureolytica Rossau et al. 1987 was previously known as CDC group IVe. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Oligella Rossau et al. 1987

Assigned by: Rossau R, Kersters K, Falsen E, Jantzen E, Segers P, Union A, Nehls L, De Ley J. Oligella, a new genus including Oligella urethralis comb. nov. (formerly Moraxella urethralis) and Oligella ureolytica sp. nov. (formerly CDC group IVe): relationship to Taylorella equigenitalis and related taxa. Int. J. Syst. Bacteriol. 1987; 37:198-210.

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Record number: 778979