Genomic Epidemiology of Klebsiella Pneumoniae Infections

Genomic epidemiology has transformed understanding of Klebsiella pneumoniae by combining whole-genome sequencing with population-level sampling to reveal transmission pathways, resistance mechanisms and virulence determinants. This pathogen, long known for hospital-acquired infections and rising multidrug resistance, exhibits extensive genetic diversity driven by horizontal gene transfer, clonal expansion and recombination. Core-genome analyses delineate global lineages, while accessory genomes and plasmid profiling expose reservoirs of extended-spectrum β-lactamases and carbapenemases. Integrating data from clinical, environmental and animal sources under a One Health framework has uncovered intricate networks of gene flow between community and healthcare settings. Genomic surveillance now underpins targeted interventions, enabling real-time outbreak detection, source tracing and the design of precision control measures. As sequencing costs fall and bioinformatic pipelines mature, routine genomic monitoring promises to curtail dissemination of high-risk clones and to guide stewardship of last-resort antibiotics.

Research from Nature Portfolio

Researchers have introduced a comprehensive genotyping framework that consolidates detection of key resistance and virulence loci across the K. pneumoniae species complex. This tool facilitates standardised surveillance by assigning sequence types, capsule loci and antimicrobial-resistance profiles, enabling inter-laboratory comparisons of global datasets. Application to a pan-European collection of carbapenemase producers revealed dominant high-risk clones exhibiting convergent acquisition of virulence and resistance determinants. Furthermore, the framework demonstrated the feasibility of extracting clinically relevant genotypes directly from metagenomic data, paving the way for culture-independent surveillance from faecal and environmental specimens.

Genomic Epidemiology of Klebsiella Pneumoniae Infections publication trend

The graph below shows the total number of articles in genomic epidemiology of klebsiella pneumoniae infections across all publications each year (not limited to Nature Index journals).

Technical terms

Genomic epidemiology: Integration of genome sequencing and epidemiological data to map pathogen spread and evolution.

Whole-genome sequencing (WGS): Determination of the complete DNA sequence of an organism’s genome at a single time.

Sequence type (ST): A designation based on multilocus sequence typing that groups isolates sharing identical alleles at several housekeeping genes.

Extended-spectrum β-lactamase (ESBL): Enzymes that confer resistance to penicillins and cephalosporins by hydrolysing their β-lactam ring.

Carbapenemase: β-lactamases capable of degrading carbapenem antibiotics, often plasmid-encoded.

Pangenome: The full complement of genes within a species, comprising core genes present in all strains and accessory genes variably distributed.

References

1. Population structure and antimicrobial resistance among Klebsiella isolates sampled from human, animal, and environmental sources in Ghana: a cross-sectional genomic One Health study. The Lancet Microbe (2023).
2. Persistent enrichment of multidrug-resistant Klebsiella in oral and nasal communities during long-term starvation. Microbiome (2024).
3. Emergence of OXA-48-producing Klebsiella pneumoniae in Lithuania, 2023: a multi-cluster, multi-hospital outbreak. Eurosurveillance (2024).
4. A genomic surveillance framework and genotyping tool for Klebsiella pneumoniae and its related species complex. Nature Communications (2021).