Species ***Legionella* *drancourtii***

Classification:

Bacteria Pseudomonadati Pseudomonadota Gammaproteobacteria Legionellales Legionellaceae Legionella Legionella drancourtii

Name: Legionella drancourtii La Scola et al. 2004

Category, proposed as: species, sp. nov.

Etymology: dran.cour’ti.i. N.L. gen. masc. n. drancourtii, in honour of Michel Drancourt for his work on intracellular micro-organisms, especially Rickettsiae

Pronunciation (Latin), gender: le-gi-o-NEL-la dran-KOUR-ti-i, feminine

Type strain: ATCC 50991; LLAP 12

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X97366 Analyse FASTA

Valid publication: La Scola B, Birtles RJ, Greub G, Harrison TJ, Ratcliff RM, Raoult D. Legionella drancourtii sp. nov., a strictly intracellular amoebal pathogen. Int J Syst Evol Microbiol 2004; 54:699-703. 🇫🇷

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 54, part 3 of the IJSEM. Int J Syst Evol Microbiol 2004; 54:1427-1428.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

Notes:
- 😷 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 7 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 genus.
- 🧍 CCUG had received the strain LLAP 12 from France and assigned a preliminary number, CCUG 0111. The strain ultimately did not become a part of the CCUG collection. — Moore ERB. Personal communication, 2021-03-04.
- 🧍 The type strain has been also deposited in the Collection de l'Unité des Rickettsies (WHO Collaborative Center for Rickettsial Reference and Research, Marseilles, France). — Strict application of the Rules would mean that Legionella drancourtii La Scola et al. 2004 is not validly published because the protologue makes reference to the deposit of the type strain in a single recognized culture collection. Moreover, the "Collection de l'Unité des Rickettsies (WHO Collaborative Center for Rickettsial Reference and Research, Marseilles, France)" is not registrated in WDCM, and its status of publicly accessible service collection is questionable. However, the type strain is only available as a co-culture in an amoeba (Acanthamoeba polyphaga), which probably explains why most other collections will not take it. Consequently, as for obligate barophiles or organisms of Risk Group 3, it seems sensible to make an exception to Rules 27(3) and 30 and to consider that Legionella drancourtii La Scola et al. 2004 is validly published. Publication: Oren A, Arahal DR, Christensen H, Goker M, Manaia CM, Moore ERB. International Code of Nomenclature of Prokaryotes. Prokaryotic Code (2025 Revision). Int J Syst Evol Microbiol 2026; 76:6979. 🇮🇱

Parent taxon: Legionella Brenner et al. 1979 (Approved Lists 1980)

Assigned by: La Scola B, Birtles RJ, Greub G, Harrison TJ, Ratcliff RM, Raoult D. Legionella drancourtii sp. nov., a strictly intracellular amoebal pathogen. Int J Syst Evol Microbiol 2004; 54:699-703. 🇫🇷

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.784090Link copied to clipboard

Record number: 784090

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Species ***Legionella* *drancourtii***