Name: Yersinia mollaretii Wauters et al. 1988

Category: Species

Proposed as: sp. nov.

Etymology: mol.la.re’ti.i. N.L. gen. masc. n. mollaretii, of Mollaret, named in honor of Henri H. Mollaret, head of the National Yersinia Center at the Pasteur Institute in Paris, for his years of study on the classification and epidemiology in the genus Yersinia

Pronunciation, gender: mol-la-RE-ti-i, feminine

Type strain: ATCC 43969; CCUG 26331; CDC 2465-87; CIP 103324; CNY 7263; DSM 18520; WAIP 204

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KJ606911 Analyse FASTA

Valid publication: Wauters G, Janssens M, Steigerwalt AG, Brenner DJ. Yersinia mollaretii sp. nov. and Yersinia bercovieri sp. nov., formerly called Yersinia enterocolitica biogroups 3A and 3B. Int. J. Syst. Bacteriol. 1988; 38:424-429.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.07718 (N = 4).
  • 😷 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 = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — 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 24 times in PubMed until 2025-06-04.
  • 🪓 Organisms assigned to this species have previously been classified as Yersinia enterocolitica (Schleifstein and Coleman 1939) Frederiksen 1964 (Approved Lists 1980). Publication: Frederiksen W. A study of some Yersinia pseudotuberculosis-like bacteria (Bacterium enterocoliticum and Pasteurella X). Proceedings of the XIV Scandinavian Congress of Pathology and Microbiology, Oslo 1964. Norwegian Universities Press, Oslo, 1964. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • 🫡 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. This name is not taxonomically suspended any more in favour of Yersinia enterocolitica (Schleifstein and Coleman 1939) Frederiksen 1964 (Approved Lists 1980). Publication: Frederiksen W. A study of some Yersinia pseudotuberculosis-like bacteria (Bacterium enterocoliticum and Pasteurella X). Proceedings of the XIV Scandinavian Congress of Pathology and Microbiology, Oslo 1964. Norwegian Universities Press, Oslo, 1964. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • 🧍 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: Yersinia van Loghem 1944 (Approved Lists 1980)

Assigned by: Wauters G, Janssens M, Steigerwalt AG, Brenner DJ. Yersinia mollaretii sp. nov. and Yersinia bercovieri sp. nov., formerly called Yersinia enterocolitica biogroups 3A and 3B. Int. J. Syst. Bacteriol. 1988; 38:424-429.

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Record number: 785225