Name: Shigella sonnei (Levine 1920) Weldin 1927 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Bacterium sonnei" Levine 1920

Etymology: son’ne.i. N.L. gen. masc. n. sonnei, of Sonne, named after Carl Sonne, a Danish bacteriologist

Gender: feminine

Type strain: ATCC 29930; CIP 82.49; DSM 5570; NCTC 12984

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FR870445 Analyse FASTA

Effective publication: Weldin JC. The colon-typhoid group of bacteria and related forms. Relationships and classification. Iowa State Journal of Science 1927; 1:121-197.

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, conserved name

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Bacterium sonnei" Levine 1920	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.08833 (N = 21).
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — 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. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "ht". — The risk group for France has been imported on 2024-08-30. The full classification is: risk group = 2. — The risk group for Sweden has been imported on 2024-02-05. The full classification is: risk group = 2. — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 2, note = "P650 = v". — The risk group for United Kingdom has been imported on 2024-01-31. The full classification is: risk group = 2. — The risk group for United States has been imported on 2024-02-09. The full classification is: risk group = 2. — 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 2217 times in PubMed until 2024-03-28.
  • 🧍 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.
  • 🧍 Conserved epithet (Judicial Opinion 11). Only conservation of epithets, and against each other. Publication: Judicial Commission. Judicial Opinion No. 14. Int J Syst Bacteriol 1954; 4:156-158.

Parent taxon: Shigella Castellani and Chalmers 1919 (Approved Lists 1980)

Assigned by: Weldin JC. The colon-typhoid group of bacteria and related forms. Relationships and classification. Iowa State Journal of Science 1927; 1:121-197.

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Record number: 780917