Name: Haemobartonella felis (ex Clark 1942) Kreier and Ristic 1984

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: fe’lis. L. gen. fem. n. felis, of the cat

Gender: feminine

Type strain: agent of feline infectious anaemia; no culture isolated; Ohio-Florida

16S rRNA gene: U88563 Analyse FASTA

Effective publication: Kreier JP, Ristic M. Anaplasmosis. XII. The growth and survival in deer and sheep of the parasites present in the blood of calves infected with the Oregon strain of Anaplasma marginale. Am J Vet Res 1963; 24:697-702.

IJSEM list: Anonymous. Validation list no. 15. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1984; 34:355-357.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Mycoplasma haemofelis Neimark et al. 2002

Risk group: 2

• Synonyms:

  • Name	Kind
    Mycoplasma haemofelis Neimark et al. 2002	homotypic synonym, validly published under the ICNP
    "Candidatus Mycoplasma haemofelis" Neimark et al. 2001	homotypic synonym, not validly published

• Notes:
  • ❗ Haemobartonella felis 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 Haemobartonella.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 1, note = "animal pathogen - biological class of risk animal: 2". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - 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, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "t".
  • 🎓 Name mentioned 58 times in PubMed until 2024-03-27.
  • 🧍 In 2001, Neimark et al. proposed the transfer of Haemobartonella felis to the genus Mycoplasma with the Candidatus status: "Candidatus Mycoplasma haemofelis" Neimark et al. 2001. The Candidatus designation is for new, incompletely described taxa, in order to give them a provisional status; changing validly published names to Candidatus would lose their standing in nomenclature. So, Neimark et al. revise "Candidatus Mycoplasma haemofelis" to Mycoplasma haemofelis nom. nov. — For the transfer of Haemobartonella felis (ex Clark 1942) Kreier and Ristic 1984 to the genus Mycoplasma Nowak 1929 (Approved Lists 1980) it is necessary to substitute a new specific epithet to produce Mycoplasma haemofelis because in the genus Mycoplasma the name Mycoplasma felis already existed (Rules 34a and 41a). Publication: Murray RG, Stackebrandt E. Taxonomic note: implementation of the provisional status Candidatus for incompletely described procaryotes. Int J Syst Bacteriol 1995; 45:186-187.
  • 🧍 The proposal of Neimark et al. (IJSEM 51:895) to reclassify Haemobartonella felis as "Candidatus Mycoplasma haemofelis" is not acceptable; H. felis (VP) would loose standing in nomenclature. Publication: Neimark H, Johansson KE, Rikihisa Y, Tully JG. Proposal to transfer some members of the genera Haemobartonella and Eperythrozoon to the genus Mycoplasma with descriptions of 'Candidatus Mycoplasma haemofelis', 'Candidatus Mycoplasma haemomuris', 'Candidatus Mycoplasma haemosuis' and 'Candidatus Mycoplasma wenyonii'. Int J Syst Evol Microbiol 2001; 51:891-899.
  • 🧍 Strains of Haemobartonella felis are cell-wall-less uncultivated parasitic bacteria that attach to the surface of host erythrocytes. 16S rRNA gene sequence has been determined for this species and phylogenetic analysis shows that this haemotrophic bacteria is closely related to species in the genus Mycoplasma Nowak 1929 (Approved Lists 1980). To reflect this phylogenetic affiliation, Neimark et al. 2001 propose that Haemobartonella felis be transferred to the genus Mycoplasma as "Candidatus Mycoplasma haemofelis". The new name haemofelis has been created to avoid confusion with Mycoplasma felis Cole et al. 1967 (Approved Lists 1980). — It is important to note that names included in the category Candidatus have no standing in bacterial nomenclature (see the file "List of Candidatus" or Candidatus in the file "Definitions and abbreviations"). So, according to the Associate Editor, the proposal of Neimark et al. to reclassify Haemobartonella felis as "Candidatus" is not acceptable; it would lose standing in nomenclature. Publication: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 3 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:1231-1233.

Parent taxon: Haemobartonella Tyzzer and Weinman 1939 (Approved Lists 1980)

Assigned by: Kreier JP, Ristic M. Anaplasmosis. XII. The growth and survival in deer and sheep of the parasites present in the blood of calves infected with the Oregon strain of Anaplasma marginale. Am J Vet Res 1963; 24:697-702.

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Record number: 783932