Species Klebsiella quasipneumoniae

Name: Klebsiella quasipneumoniae Brisse et al. 2014

Category, proposed as: species, sp. nov.

Etymology: qua.si.pneu.mo.ni’ae. L. conj. quasi, almost like; Gr. fem. n. pneumonia, pneumonia, disease or inflammation of the lungs; N.L. gen. fem. n. quasipneumoniae, similar to pneumoniae, the specific epithet of K. pneumoniae

Pronunciation (Latin), gender: kleb-si-EL-la kwa-si-pne͡u-mo-NI-a͡e, feminine

Type strain: 01A030; CIP 110771; DSM 28211; SB11

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: HG933296 Analyse FASTA

Valid publication: Brisse S, Passet V, Grimont PA. Description of Klebsiella quasipneumoniae sp. nov., isolated from human infections, with two subspecies, Klebsiella quasipneumoniae subsp. quasipneumoniae subsp. nov. and Klebsiella quasipneumoniae subsp. similipneumoniae subsp. nov., and demonstration that Klebsiella singaporensis is a junior heterotypic synonym of Klebsiella variicola. Int J Syst Evol Microbiol 2014; 64:3146-3152. 🇫🇷

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 64, part 9 of the IJSEM. Int J Syst Evol Microbiol 2014; 64:3923-3925.

Nomenclatural status: validly published under the ICNP

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

• Notes:
  • 🎓 Name mentioned 190 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.
  • 🧍 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. 🇬🇧

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Klebsiella quasipneumoniae subsp. quasipneumoniae (Brisse et al. 2014) Brisse et al. 2014	validly published under the ICNP	correct name
    Klebsiella quasipneumoniae subsp. similipneumoniae Brisse et al. 2014	validly published under the ICNP	correct name

Parent taxon: Klebsiella Trevisan 1885 (Approved Lists 1980)

Assigned by: Brisse S, Passet V, Grimont PA. Description of Klebsiella quasipneumoniae sp. nov., isolated from human infections, with two subspecies, Klebsiella quasipneumoniae subsp. quasipneumoniae subsp. nov. and Klebsiella quasipneumoniae subsp. similipneumoniae subsp. nov., and demonstration that Klebsiella singaporensis is a junior heterotypic synonym of Klebsiella variicola. Int J Syst Evol Microbiol 2014; 64:3146-3152. 🇫🇷

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Record number: 792147