Name: Actinobacillus suis van Dorssen and Jaartsveld 1962 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: su’is. L. masc./fem. n. sus, the pig, swine; L. gen. masc./fem. n. suis, of the pig

Gender: masculine

Type strain: ATCC 33415; CCM 5586; CCUG 11624; CIP 103354; DSM 22433; NCTC 12996

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF015299 Analyse FASTA

Effective publication: Van Dorssen CA, Jaartsveld FHJ. Actinobacillus suis (novo species) een bij het varken voorkomende bacterie. Tijdschrift voor Diergeneeskunde 1962; 87:448-450.

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

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

Risk group: 2

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.09154 (N = 28).
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 1, note = "animal pathogen - biological class of risk animal: 2". — 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, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, 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 115 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 2022; 168:0.

Parent taxon: Actinobacillus Brumpt 1910 (Approved Lists 1980)

Assigned by: Van Dorssen CA, Jaartsveld FHJ. Actinobacillus suis (novo species) een bij het varken voorkomende bacterie. Tijdschrift voor Diergeneeskunde 1962; 87:448-450.

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Record number: 783289