ArticleTransboundary and emerging diseases2026
Companion Animals Harbour Globally Circulating Human-Associated Klebsiella pneumoniae Lineages and High-Risk Antimicrobial Resistance Clones.
Article in Transboundary and emerging diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Companion Animals Harbour Globally Circulating Human-Associated Klebsiella pneumoniae Lineages and High-Risk Antimicrobial Resistance Clones.Transboundary and emerging diseases · 2026Article
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3 authors.
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Abstract
Companion animals are increasingly recognised within One Health antimicrobial-resistance (AMR) surveillance, yet the global genomic structure of dog- and cat-associated Klebsiella pneumoniae remains poorly defined. We assembled a global dataset of 712 domestic dog (Canis lupus familiaris)- and cat (Felis catus)-derived K. pneumoniae genomes to define lineage diversity, AMR burden, host-associated patterns, and overlap with human-associated populations. Companion-animal isolates comprised 263 sequence types (STs), but recurrent high-risk lineages, including ST307, ST11, ST15, and ST147, were prominent. Among 706 isolates from 25 countries, extended-spectrum β-lactamase (ESBL) and carbapenemase genes were widely distributed, detected in 303 (42.9%) and 98 (13.9%) isolates, respectively. Cat-derived isolates showed higher multidrug-resistance (MDR) prevalence than dog-derived isolates; 80.0% versus 56.3%, partly reflecting enrichment of epidemic clones, especially ST147. MDR was not confined to infection-associated samples, indicating that colonisation may represent an important reservoir state. Comparison with 38,106 human-associated K. pneumoniae isolates revealed extensive ST overlap, with 71.1% of companion-animal STs and 87.2% of companion-animal isolates belonging to STs also detected in humans. Focused recombination-filtered phylogenomics of ST147 identified a closely related MDR cluster containing cat-, dog- and human-associated genomes, consistent with recent common ancestry and cross-host cocirculation. Together, these findings reveal domestic dogs and cats harbour globally distributed K. pneumoniae lineages and high-risk AMR clones also represented in human-associated populations.
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