Name: Providencia hangzhouensis Dong et al. 2025

Category: Species

Proposed as: sp. nov.

Etymology: hang.zhou.en’sis. N.L. fem. adj. hangzhouensis, referring to Hangzhou

Pronunciation (Latin), gender: … han͡g-z͡hou-EN-sis, feminine

Type strain: CCTCC AB 2023265; NBRC 116613; PR-310

Conduct genome-based taxonomy at

Effective publication: Dong X, Yu Y, Liu J, Cao D, Xiang Y, Bi K, Yuan X, Li S, Wu T, Zhang Y. Whole-genome sequencing provides insights into a novel species: Providencia hangzhouensis associated with urinary tract infections. Microbiol Spectr 2023; 11:e0122723. 🇨🇳

IJSEM list: Oren A, Göker M. Validation list no. 221. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2025; 75:6562.

Nomenclatural status: validly published under the ICNP

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

• Synonyms:

  • Name	Kind
    "Providencia hangzhouensis" Dong et al. 2024	homotypic synonym, not validly published

• Notes:
  • 🎓 Name mentioned 5 times in PubMed until 2026-02-10.
  • 🙆 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 pathogenicity of the species itself.

Parent taxon: Providencia Ewing 1962 (Approved Lists 1980)

Assigned by: Dong X, Yu Y, Liu J, Cao D, Xiang Y, Bi K, Yuan X, Li S, Wu T, Zhang Y. Whole-genome sequencing provides insights into a novel species: Providencia hangzhouensis associated with urinary tract infections. Microbiol Spectr 2023; 11:e0122723. 🇨🇳

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Record number: 57232