Evidence Hub

Whole-Genome Sequencing of Klebsiella quasipneumoniae subsp. similipneumoniae Isolated from a Patient with Pneumonia

Sękowska A, Konechnyi Y, Carrazco-Montalvo A

Current microbiology, 2025

3 citations

Abstract

Klebsiella quasipneumoniae are Gram-negative capsulated, non-motile, facultative anaerobic rods. It is one of the species that belongs to K. pneumoniae complex. Human infections related to K. quasipneumoniae are exceedingly rare. Here, we present a case of K. quasipneumoniae subsp. similipneumoniae pneumonia in hospitalized patient with liver cancer. Strain identification was performed by mass spectrometry method and whole-genome sequencing. The isolate was extended spectrum beta-lactamase positive and possessed the blaSHV-18 gene. Genome sequence analysis of the isolate revealed the presence of virulence factors genes entA, entB, fepC, ompA, ykgK, and yagVWXYZ. The isolate demonstrated in vitro susceptibility to carbapenems, but, however, was classified as multidrug resistant with limited therapeutic options. To understand the significance of K. quasipneumoniae in human infections, it is important to distinguish it from other species of the K. pneumoniae complex.

How strong is the evidence?

Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

Read the paper

Related studies

Go deeper in Evidence Hub

Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.

Open this study Sign up free