Name: Proteus hauseri O'Hara et al. 2000

Category: Species

Proposed as: sp. nov.

Etymology: haus’er.i. N.L. gen. masc. n. hauseri, of Hauser, named to honour Gustav Hauser, the German microbiologist, who proposed the genus Proteus in 1885

Gender: masculine

Type strain: ATCC 700826; CCUG 35386; CDC 1732-80; CIP 106868; DSM 14437

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: MN749806 Analyse FASTA

Valid publication: O'Hara CM, Brenner FW, Steigerwalt AG, Hill BC, Holmes B, Grimont PA, Hawkey PM, Penner JL, Miller JM, Brenner DJ. Classification of Proteus vulgaris biogroup 3 with recognition of Proteus hauseri sp. nov., nom. rev. and unnamed Proteus genomospecies 4, 5 and 6. Int J Syst Evol Microbiol 2000; 50:1869-1875.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 5 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:1955.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.16254 (N = 1).
  • 😷 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 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 57 times in PubMed until 2024-03-28.
  • 🪓 Organisms assigned to this species have previously been classified as Proteus vulgaris Hauser 1885 (Approved Lists 1980). Publication: Hauser G. Über Fäulnissbakterien und deren Beziehungen zur Septicämie. Ein Beitrag zur Morphologie der Spaltpilze. Vogel, Leipzig, 1885. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • 🧍 Formerly Proteus vulgaris biogroup 3. — 🧍 O'Hara et al. (2000) propose Proteus hauseri as a nomen revictum [Proteus hauseri (ex Kauffmann 1954) O'Hara et al. 2000, sp. nov., nom. rev.]. However, "Proteus hauseri" Kauffmann 1954, included Proteus mirabilis Hauser 1885 (Approved Lists 1980) and Proteus vulgaris Hauser 1885 (Approved Lists 1980). So, Proteus hauseri O'Hara et al. 2000 and "Proteus hauseri" Kauffmann 1954 are different taxa, and according to Rules 28a and 33c, Proteus hauseri O'Hara et al. 2000 is not a revived name. Publication: Hauser G. Über Fäulnissbakterien und deren Beziehungen zur Septicämie. Ein Beitrag zur Morphologie der Spaltpilze. Vogel, Leipzig, 1885.

Parent taxon: Proteus Hauser 1885 (Approved Lists 1980)

Assigned by: O'Hara CM, Brenner FW, Steigerwalt AG, Hill BC, Holmes B, Grimont PA, Hawkey PM, Penner JL, Miller JM, Brenner DJ. Classification of Proteus vulgaris biogroup 3 with recognition of Proteus hauseri sp. nov., nom. rev. and unnamed Proteus genomospecies 4, 5 and 6. Int J Syst Evol Microbiol 2000; 50:1869-1875.

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Record number: 779871