Name: Campylobacter hyointestinalis subsp. lawsonii On et al. 1995

Category: Subspecies

Proposed as: subsp. nov.

Etymology: law.son’i.i. N.L. gen. masc. n. lawsonii, of Lawson, in honor of Gordon H.K. Lawson, a bacteriologist at Edinburgh University whose studies on enteric disease in pigs led to the delineation of Campylobacter mucosalis and the bacterium Lawsonia intracellularis

Gender: masculine

Type strain: CCUG 34538; CIP 104686; LMG 14432; NCTC 12901

See detailed strain information at

Valid publication: On SL, Bloch B, Holmes B, Hoste B, Vandamme P. Campylobacter hyointestinalis subsp. lawsonii subsp. nov., isolated from the porcine stomach, and an emended description of Campylobacter hyointestinalis. Int J Syst Bacteriol 1995; 45:767-774.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 4 of the IJSB. Int J Syst Bacteriol 1996; 46:364-365.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Notes:
  • 😩 Deposit incorrectly indicated in some sources as representing the type strain of this taxon: CHY 5.
  • 😷 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 = 1. — 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.

Parent taxon: Campylobacter hyointestinalis Gebhart et al. 1985

Assigned by: On SL, Bloch B, Holmes B, Hoste B, Vandamme P. Campylobacter hyointestinalis subsp. lawsonii subsp. nov., isolated from the porcine stomach, and an emended description of Campylobacter hyointestinalis. Int J Syst Bacteriol 1995; 45:767-774.

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Record number: 783592