Name: Listeria ivanovii subsp. londoniensis Boerlin et al. 1992

Category: Subspecies

Proposed as: subsp. nov.

Etymology: lon.do.ni.en’sis. N.L. fem. adj. londoniensis, pertaining to London, Ontario, Canada, where E. G. D. Murray and R. G. E. Murray worked on Listeria [probably better: londonensis]

Pronunciation, gender: lon-do-ni-EN-sis, feminine

Type strain: CCM 4698; CCUG 36672; CECT 5374; CIP 103466; CLIP 12229; CNL 89/5081; DSM 12491; JCM 32891; NCTC 12701

Conduct genome-based taxonomy at

16S rRNA gene: X98529 Analyse FASTA

Valid publication: Boerlin P, Rocourt J, Grimont F, Grimont PAD, Jacquet C, Piffaretti JC. Listeria ivanovii subsp. londoniensis subsp. nov. Int. J. Syst. Bacteriol. 1992; 42:69-73.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 42, part 1 of the IJSB. Int J Syst Bacteriol 1992; 42:328-329.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Synonyms:

  • Name	Kind
    "Listeria londonensis" (Boerlin et al. 1992) Bouznada et al. 2025	homotypic synonym, not validly published, distinct rank

• Notes:
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human and 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 = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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 = "Z". — The risk group for France has been imported on 2024-08-30. The full classification is: risk group = 2. — The risk group for United Kingdom has been imported on 2024-01-31. The full classification is: risk group = 2, note = "(spelled 'Listeria invanovii subsp. londoniensis' in uk)". — 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.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the species itself.

Parent taxon: Listeria ivanovii Seeliger et al. 1984

Assigned by: Boerlin P, Rocourt J, Grimont F, Grimont PAD, Jacquet C, Piffaretti JC. Listeria ivanovii subsp. londoniensis subsp. nov. Int. J. Syst. Bacteriol. 1992; 42:69-73.

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Record number: 777589