Species ***Rickettsia* *massiliae***

Name: Rickettsia massiliae Beati and Raoult 1993

Category: Species

Proposed as: sp. nov.

Etymology: mas.si’li.ae. L. gen. fem. n. massiliae, of Massilia, the Latin name of Marseille, where the organism was first isolated

Pronunciation (Latin), gender: rik-KETT-si-a mas-SI-li-a͡e, feminine

Type strain: ATCC VR-1376; Mtu1

16S rRNA gene: L36214 Analyse FASTA

Valid publication: Beati L, Raoult D. Rickettsia massiliae sp. nov., a new spotted fever group Rickettsia. Int J Syst Bacteriol 1993; 43:839-840. 🇫🇷

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 43, part 4 of the IJSB. Int J Syst Bacteriol 1994; 44:184.

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 = 2, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2 - Considerations for containment: Prior to CBSG First Edition, additional operation procedures were required.". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 3. — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 2, note = "Z". — 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 165 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 Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧

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

Assigned by: Beati L, Raoult D. Rickettsia massiliae sp. nov., a new spotted fever group Rickettsia. Int J Syst Bacteriol 1993; 43:839-840. 🇫🇷

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.784793Link copied to clipboard

Record number: 784793

This LPSN page was printed on 2026-09-10 04:54:59

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Species Rickettsia massiliae

Species ***Rickettsia* *massiliae***