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Carbapenem-resistant Klebsiella pneumoniae belongs to the “critical-priority” tier of bacterial pathogens as identified by the World Health Organization. Emerging “high-risk” lineages are responsible for difficult-to-treat, hospital-acquired infections and outbreaks around the globe. By integrating genomic and epidemiological data for isolates collected over 20 mo, this study revealed both the high, regional prevalence and the rapid spread, within a single hospital, of K. pneumoniae ST-147 in Italy. Besides resistance to nearly all antibiotics, this lineage carried a hybrid plasmid harboring a set of biomarker genes previously linked to hypervirulence. Convergence of resistance and virulence determinants is a major concern and these findings highlight the need for robust, global surveillance to monitor the emergence of high-risk K. pneumoniae .

France generalUnited kingdomNew delhiWorld health organizationAl qahirahLerner chromagarVerona integronWalter reed army institute of researchNational centerDepartment of veterans affairs va merit reviewDepartment of defenseDepartment of the armyUs army medicalDevelopment programDefense medical researchWorld health