Name: Rickettsia conorii subsp. raoultii (Mediannikov et al. 2008) Hördt et al. 2020

Category: Subspecies

Proposed as: comb. nov.

Basonym: Rickettsia raoultii Mediannikov et al. 2008

Etymology: ra.oul’ti.i. N.L. gen. masc. n. raoultii, of Raoult, named after Professor Didier Raoult, founder of the WHO-Collaborative Centre for Rickettsioses, Borrelioses and Tick-borne Infections in Marseilles, France, and a major contributor to the study of rickettsiae

Pronunciation (Latin), gender: … ra-OUL-ti-i, feminine

Type strain: ATCC VR-1596; CSUR R3; Khabarovsk

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: DQ365810 Analyse FASTA

Effective publication: 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. 🇩🇪

IJSEM list: Oren A, Garrity GM. Validation list no. 196. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:5596-5601.

Nomenclatural status: validly published under the ICNP

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

• Synonyms:

  • Name	Kind
    Rickettsia raoultii Mediannikov et al. 2008	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.03037 (N = 1).
  • 😷 The taxon name shown here has no risk group assigned, but is the homotypic synonym of Rickettsia raoultii Mediannikov et al. 2008, which has a risk group (Canada) above 1. This may require that the name shown here is not treated as the correct name for practical purposes. — The taxon name shown here has no risk group assigned, but is the homotypic synonym of Rickettsia raoultii Mediannikov et al. 2008, which has a risk group (Germany) above 1. This may require that the name shown here is not treated as the correct name for practical purposes.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the species itself.

Parent taxon: Rickettsia conorii corrig. Brumpt 1932 (Approved Lists 1980)

Assigned by: 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. 🇩🇪

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Record number: 15284