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Species Rickettsia canadensis

Name: Rickettsia canadensis corrig. McKiel et al. 1967 (Approved Lists 1980)

Category, proposed as: species, sp. nov.

Etymology: ca.na.den’sis. N.L. fem. adj. canadensis, pertaining to Canada, the country where the organism was first isolated

Pronunciation (Latin), gender: rik-KETT-si-a ka-na-DEN-sis, feminine

Type strain: 2678; ATCC VR-610

16S rRNA gene: L36104 Analysetree FASTA download

Effective publication: McKiel JA, Bell EJ, Lackman DB. Rickettsia canada: a new member of the typhus group of rickettsiae isolated from Haemaphysalis leporispalustris ticks in Canada. Can J Microbiol 1967; 13:503-510.

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: 3

  • Notes:
    • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 3, note = "human pathogen - (*)". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 3, note = "Animal classification RG: 3 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 3, note = "**". — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 2, note = "Z". — The risk group for France has been imported on 2024-08-30. The full classification is: risk group = 2. — The risk group for United Kingdom has been imported on 2024-01-31. The full classification is: risk group = 3, note = "*". — 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 12 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.
    • 🧍 Nom. corrig.: IJSB 47:909; Rickettsia canada (sic). Publication: Trüper HG, De' Clari L. Taxonomic note: Necessary correction of specific epithets formed as substantives (nouns) "in apposition". Int. J. Syst. Bacteriol. 1997; 47:908-909. 🇩🇪
    • 🧍 In Kilian's opinion [1] the change of the well-established name Rickettsia canada may be a source of confusion. So, with reference to the first Principle of the Bacteriological Code (1990 Revision), Kilian requested that the original name Rickettsia canada be conserved [2]. The Judicial Commission denied this request, and no Opinion will be issued upon this request [3]. Publication: Kilian M. Necessary changes of bacterial names? ASM News 1998; 64:670.
    • 🧍 The original spelling of the specific epithet, canada (sic), has been corrected by Trüper and De' Clari 1997. Publication: Trüper HG, De' Clari L. Taxonomic note: Necessary correction of specific epithets formed as substantives (nouns) "in apposition". Int. J. Syst. Bacteriol. 1997; 47:908-909. 🇩🇪

Parent taxon: Rickettsia da Rocha-Lima 1916 (Approved Lists 1980)

Assigned by: McKiel JA, Bell EJ, Lackman DB. Rickettsia canada: a new member of the typhus group of rickettsiae isolated from Haemaphysalis leporispalustris ticks in Canada. Can J Microbiol 1967; 13:503-510.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.784786Link copied to clipboard

Record number: 784786