Species Aeromonas bestiarum

Name: Aeromonas bestiarum Ali et al. 1996

Category, proposed as: species, sp. nov.

Etymology: bes.ti.a’rum. L. gen. fem. pl. n. bestiarum, of beasts, of animals (whether wild or domestic)

Pronunciation (Latin), gender: a-e-RO-mo-nas bes-ti-A-rum, feminine

Type strain: ATCC 51108; CCUG 41859; CDC 9533-76; CIP 74.30; DSM 13956; LMG 13444

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X60406 Analyse FASTA

Effective publication: Ali A, Carnahan AM, Altwegg M, Lüthy-Hottenstein J, Joseph SW. Aeromonas bestiarum sp. nov. (formerly genomospecies DNA group 2 A. hydrophila), a new species isolated from non-human sources. Med. Microbiol. Lett. 1996; 5:156-165.

IJSEM list: Anonymous. Validation list no. 59. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1996; 46:1189-1190.

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 = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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 2026-08-13. The full classification is: risk group = 1, note = "ht+". — 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 38 times in PubMed until 2026-06-11.
  • 🙆 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 was only found in cases of infection in fish. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧
  • 🧍 Aeromonas bestiarum Ali et al. 1996 was previously known as Aeromonas hydrophila genomospecies 2. — There had been past discussion about the validity of the separation of the two closely related species, Aeromonas bestiarum and Aeromonas salmonicida [1]. Publication: Farmer Iii JJ, Holmes B. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Aeromonadaceae, Vibrionaceae and related organisms. Minutes of the Meetings, 25 July 2005, San Francisco, CA, USA. Int. J. Syst. Evol. Microbiol. 2009; 59:2633-2637. 🇬🇧
  • 🧍 There had been past discussion about the validity of the separation of the two closely related species, Aeromonas bestiarum and Aeromonas salmonicida [1]. However, Soler et al. [2] using MLST with the gyrB and rpoD genes among the genus Aeromonas, provided initial evidence for the clear phylogenetic divergence between these two species to warrant their remaining as separate species. Publication: Soler L, Yanez MA, Chacon MR, Aguilera-Arreola MG, Catalan V, Figueras MJ, Martinez-Murcia AJ. Phylogenetic analysis of the genus Aeromonas based on two housekeeping genes. Int J Syst Evol Microbiol 2004; 54:1511-1519. 🇪🇸

Parent taxon: Aeromonas Stanier 1943 (Approved Lists 1980)

Assigned by: Ali A, Carnahan AM, Altwegg M, Lüthy-Hottenstein J, Joseph SW. Aeromonas bestiarum sp. nov. (formerly genomospecies DNA group 2 A. hydrophila), a new species isolated from non-human sources. Med. Microbiol. Lett. 1996; 5:156-165.

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Record number: 772894