Name: Rochalimaea henselae Regnery et al. 1992

Category: Species

Proposed as: sp. nov.

Etymology: hen’se.lae. N.L. gen. fem. n. henselae, of Hensel, named in honor of Diane M. Hensel, who isolated many of the original strains detected in bacteremic patients from Oklahoma

Pronunciation, gender: HEN-se-la͡e, feminine

Type strain: ATCC 49882; CCUG 30454; CIP 103737; DSM 28221; G5436; Houston-1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: CP072900 Analyse FASTA

Effective publication: Regnery RL, Anderson BE, Clarridge JE, Rodriguez-Barradas MC, Jones DC, Carr JH. Characterization of a novel Rochalimaea species, R. henselae sp. nov., isolated from blood of a febrile, human immunodeficiency virus-positive patient. J Clin Microbiol 1992; 30:265-274.

IJSEM list: Anonymous. Validation list no. 42. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1992; 42:511.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Bartonella henselae (Regnery et al. 1992) Brenner et al. 1993

Risk group: 2

• Synonyms:

  • Name	Kind
    Bartonella henselae (Regnery et al. 1992) Brenner et al. 1993	homotypic synonym, validly published under the ICNP

• Notes:
  • 😡 This taxon name is a homonym of "Rochalimaea henselae" Welch et al. 1992.
  • ❗ Rochalimaea henselae 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 Rochalimaea.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - 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, 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 116 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.

Parent taxon: Rochalimaea (Macchiavello 1947) Krieg 1961 (Approved Lists 1980)

Assigned by: Regnery RL, Anderson BE, Clarridge JE, Rodriguez-Barradas MC, Jones DC, Carr JH. Characterization of a novel Rochalimaea species, R. henselae sp. nov., isolated from blood of a febrile, human immunodeficiency virus-positive patient. J Clin Microbiol 1992; 30:265-274.

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Record number: 784812