Name: Klebsiella mobilis Bascomb et al. 1971 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: mo’bi.lis. L. fem. adj. mobilis, movable, motile

Pronunciation, gender: MO-bi-lis, feminine

Type strain: ATCC 13048; CCUG 1429; CIP 60.86; DSM 30053; HAMBI 101; HAMBI 1898; IFO 13534; JCM 1235; LMG 2094; NBIMCC 3699; NBRC 13534; NCAIM B.01467; NCTC 10006

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ251468 Analyse FASTA

Effective publication: Bascomb S, Lapage SP, Willcox WR, Curtis MA. Numerical classification of the tribe Klebsielleae. J Gen Microbiol 1971; 66:279-295.

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, illegitimate name

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

Correct name: Klebsiella aerogenes (Hormaeche and Edwards 1960) Tindall et al. 2017

Risk group: 2

• Synonyms:

  • Name	Kind
    Enterobacter aerogenes Hormaeche and Edwards 1960 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Klebsiella aerogenes (Hormaeche and Edwards 1960) Tindall et al. 2017	homotypic synonym, validly published under the ICNP

• 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: 2 - 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". — The risk group for France has been imported on 2024-08-30. 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 9 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.
  • 🧍 Illegitimate according to IJSEM 67:502-4. Publication: Tindall BJ, Sutton G, Garrity GM. Enterobacter aerogenes Hormaeche and Edwards 1960 (Approved Lists 1980) and Klebsiella mobilis Bascomb et al. 1971 (Approved Lists 1980) share the same nomenclatural type (ATCC 13048) on the Approved Lists and are homotypic synonyms, with consequences for the name Klebsiella mobilis Bascomb et al. 1971 (Approved Lists 1980). Int J Syst Evol Microbiol 2017; 67:502-504.

Parent taxon: Klebsiella Trevisan 1885 (Approved Lists 1980)

Assigned by: Bascomb S, Lapage SP, Willcox WR, Curtis MA. Numerical classification of the tribe Klebsielleae. J Gen Microbiol 1971; 66:279-295.

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Record number: 784051