Name: Francisella novicida (Larson et al. 1955) Olsufiev et al. 1959 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Pasteurella novicida" Larson et al. 1955

Etymology: no.vi.ci’da. L. masc. adj. novus, new; L. masc. n. suff. -cida, killer; from L. v. caedo, to cut, kill; N.L. masc. n. novicida, new killer (nominative in apposition)

Pronunciation, gender: … no-wi-KI-da, feminine

Type strain: ATCC 15482; CCUG 33449; CIP 56.12

See detailed strain information at

16S rRNA gene: AY928396 Analyse FASTA

Effective publication: Olsufiev NG, Emelyanova OS, Dunaeva TN. Comparative studies of strains of B. tularense in the Old and New World and their taxonomy. Journal of Hygiene, Epidemiology, Microbiology and Immunology (Prague) 1959; 3:138-149.

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: synonym (and not recommended for medical use)

Correct name: Francisella tularensis subsp. novicida (Larson et al. 1955) Huber et al. 2010

Risk group: 2

• Synonyms:

  • Name	Kind
    Francisella tularensis subsp. novicida (Larson et al. 1955) Huber et al. 2010	homotypic synonym, validly published under the ICNP, distinct rank
    "Pasteurella novicida" Larson et al. 1955	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • ❗ Francisella novicida is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Francisella.
  • 😷 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: 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. — 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 316 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
  • 🧍 In 2005, A.B. Sjöstedt [1] proposed to reclassify Francisella novicida (Larson et al. 1955) Olsufiev et al. 1959 (Approved Lists 1980) as "Francisella tularensis subsp. novicida" (Larson et al. 1955) Sjöstedt, comb. nov. This new combination is cited in several papers, however it is not validly published. Publication: Sjöstedt AB. Genus I. Francisella Dorofe'ev 1947, 176AL. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. (The Proteobacteria), part B (The Gammaproteobacteria), Springer, New York, 2005, p. 200-210. 🇺🇸
  • 🧍 In 2010, Huber et al. [2] will validate the publication of the name Francisella tularensis subsp. novicida (Larson et al. 1955) Huber et al. 2010, comb. nov. Publication: Huber B, Escudero R, Busse HJ, Seibold E, Scholz HC, Anda P, Kampfer P, Splettstoesser WD. Description of Francisella hispaniensis sp. nov., isolated from human blood, reclassification of Francisella novicida (Larson et al. 1955) Olsufiev et al. 1959 as Francisella tularensis subsp. novicida comb. nov. and emended description of the genus Francisella. Int J Syst Evol Microbiol 2010; 60:1887-1896. 🇦🇹

Parent taxon: Francisella Dorofeev 1947 (Approved Lists 1980)

Assigned by: Olsufiev NG, Emelyanova OS, Dunaeva TN. Comparative studies of strains of B. tularense in the Old and New World and their taxonomy. Journal of Hygiene, Epidemiology, Microbiology and Immunology (Prague) 1959; 3:138-149.

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Record number: 783870