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Species Leptospira biflexa

Name: Leptospira biflexa (Wolbach and Binger 1914) Noguchi 1918 (Approved Lists 1980)

Category, proposed as: species, comb. nov.

Basonym: "Spirochaeta biflexa" Wolbach and Binger 1914

Etymology: bi.fle’xa. L. adv. bis, twice; L. perf. part. flexus -a -um, bent, winding; from L. v. flecto, to bend, to curve; N.L. fem. part. adj. biflexa, bent twice

Pronunciation (Latin), gender: lep-to-SPI-ra bi-FLE-xa, feminine

Type strain: ATCC 23582; Patoc 1; Patoc I; serovar Patoc strain Patoc I

16S rRNA gene: EU159692 Analysetree FASTA download

Effective publication: Noguchi H. MORPHOLOGICAL CHARACTERISTICS AND NOMENCLATURE OF LEPTOSPIRA (SPIROCHAETA) ICTEROHAEMORRHAGIAE (INADA AND IDO). J Exp Med 1918; 27:575-592.

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

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

Risk group: 2

  • Emendations:
    • Faine and Stallman 1982 Faine S, Stallman ND. Amended descriptions of the genus Leptospira Noguchi 1917 and the species L. interrogans (Stimson 1907) Wenyon 1926 and L. biflexa (Wolbach and Binger 1914) Noguchi 1918. Int. J. Syst. Bacteriol. 1982; 32:461-463.
    • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.
  • Notes:
    • 🧬 The phylogenomic assignment score of this taxon is 0.12036 (N = 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. — The risk group for Germany has been imported on 2026-08-13. 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.
    • 🎓 Name mentioned 214 times in PubMed until 2026-06-11.
    • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
    • 🧍 According to the CCUG curator, CCUG 5912 was received from ATCC and never processed; was not intended for distribution. — Moore ERB. Personal communication, 2023-05-25.

Parent taxon: Leptospira Noguchi 1917 (Approved Lists 1980)

Assigned by: Noguchi H. MORPHOLOGICAL CHARACTERISTICS AND NOMENCLATURE OF LEPTOSPIRA (SPIROCHAETA) ICTEROHAEMORRHAGIAE (INADA AND IDO). J Exp Med 1918; 27:575-592.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.784132Link copied to clipboard

Record number: 784132