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 = 17).
  • 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.
  • The full TRBA 466 classification is: risk group = 2, note = "ht".

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