Name: Eperythrozoon parvum Splitter 1950 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: par’vum. L. neut. adj. parvum, small

Pronunciation, gender: PAR-wum, neuter

Type strain: Indiana; no culture isolated

Conduct genome-based taxonomy at

16S rRNA gene: CP006771 Analyse FASTA

Effective publication: Splitter EJ. Eperythrozoon suis n. sp. and Eperythrozoon parvum n. sp., 2 new blood parasites of swine. Science 1950; 111:513-514.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Synonyms:

  • Name	Kind
    "Mycoplasma parvum" (Splitter 1950) Do Nascimento et al. 2013	homotypic synonym, not validly published

• Notes:
  • 😷 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". — 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 8 times in PubMed until 2025-06-04.
  • 🙆 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 Yarza et al. (2013), an "un-sequenced orphan species where descriptions, illustrations or dead preserved material serve as the type.". Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.
  • 🧍 See the note for Eperythrozoon. Publication: Schilling V. Eperythrozoon coccoides, eine neue durch Splenektomie aktivierbare Dauerinfektion der weissen Maus. Klinische Wochenschrift 1928; 7:1853-1855.

Parent taxon: Eperythrozoon Schilling 1928 (Approved Lists 1980)

Assigned by: Splitter EJ. Eperythrozoon suis n. sp. and Eperythrozoon parvum n. sp., 2 new blood parasites of swine. Science 1950; 111:513-514.

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Record number: 783787