Name: Erysipelothrix tonsillarum Takahashi et al. 1987

Category: Species

Proposed as: sp. nov.

Etymology: ton.sil.la.rum. L. gen. fem. pl. n. tonsillarum, of the tonsils

Gender: feminine

Type strain: ATCC 43339; CCUG 31352; CIP 105960; DSM 14972; JCM 8533; T-305

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB540983 Analyse FASTA

Valid publication: Takahashi T, Fujisawa T, Benno Y, Tamura Y, Sawada T, Suzuki S, Muramatsu M, Mitsuoka T. Erysipelothrix tonsillarum sp. nov. isolated from tonsils of apparently healthy pigs. Int. J. Syst. Bacteriol. 1987; 37:166-168.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• 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 = 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 Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "PIIC PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "t". — 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 22 times in PubMed until 2024-03-28.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683.
  • 🧍 Erysipelothrix tonsillarum Takahashi et al. 1987 was previously known as Erysipelothrix rhusiopathiae serovar 7 [1]. Publication: Takahashi T, Fujisawa T, Benno Y, Tamura Y, Sawada T, Suzuki S, Muramatsu M, Mitsuoka T. Erysipelothrix tonsillarum sp. nov. isolated from tonsils of apparently healthy pigs. Int. J. Syst. Bacteriol. 1987; 37:166-168.
  • 🧍 Later, the serovars 3, 10, 14, 20, 22, and 23 of Erysipelothrix rhusiopathiae have been included in the taxon Erysipelothrix tonsillarum Takahashi et al. 1987 [2]. Publication: Takahashi T, Fujisawa T, Tamura Y, Suzuki S, Muramatsu M, Sawada T, Benno Y, Mitsuoka T. DNA relatedness among Erysipelothrix rhusiopathiae strains representing all twenty-three serovars and Erysipelothrix tonsillarum. Int J Syst Bacteriol 1992; 42:469-473.

Parent taxon: Erysipelothrix Rosenbach 1909 (Approved Lists 1980)

Assigned by: Takahashi T, Fujisawa T, Benno Y, Tamura Y, Sawada T, Suzuki S, Muramatsu M, Mitsuoka T. Erysipelothrix tonsillarum sp. nov. isolated from tonsils of apparently healthy pigs. Int. J. Syst. Bacteriol. 1987; 37:166-168.

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Record number: 776039