Name: Chlamydia muridarum Everett et al. 1999

Category: Species

Proposed as: sp. nov.

Etymology: mu.ri.da’rum. N.L. gen. fem. pl. n. muridarum, of the Muridae (i.e. the mouse/ hamster family)

Pronunciation (Latin), gender: k^hla-MY-di-a mu-ri-DA-rum, feminine

Type strain: ATCC VR-123; DSM 28544; MoPn; MoPn/Wiess-Nigg; Nigg

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D85718 Analyse FASTA

Valid publication: Everett KD, Bush RM, Andersen AA. Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms. Int J Syst Bacteriol 1999; 49:415-440. 🇺🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 2 of the IJSB. Int J Syst Bacteriol 1999; 49:937-939.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 😷 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 = 2, 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. — The risk group for Germany has been imported on 2026-08-13. 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 509 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.
  • 🧍 In the paper by Everett et al. 1999, the type strain is erroneously cited as ATCC VR 123 (without dash). — Tang J. Personal communication, 2001-05-30.

Parent taxon: Chlamydia Jones et al. 1945 (Approved Lists 1980)

Assigned by: Everett KD, Bush RM, Andersen AA. Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms. Int J Syst Bacteriol 1999; 49:415-440. 🇺🇸

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.783624Copy to clipboardLink copied to clipboard

Record number: 783624

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31