AIM The aim of this study was to characterize beta-lactamase antimicrobial resistance in Klebsiella and Enterobacter species isolated from healthy and diarrheic dogs in Andhra Pradesh. MATERIALS AND METHODS A total of 136 rectal swabs were collected from healthy (92) and diarrheic (44) dogs, bacteriological cultured for Klebsiella and Enterobacter growth and screened for beta-lactamase antimi...

Klebsiella oxytoca can be either pathogenic or beneficial, depending on conditions. These opposing characteristics have not been fully elucidated. Here, we report the complete sequence of the K. oxytoca JKo3 genome, consisting of a single circular chromosome of 5,943,791 bp and four plasmids.

Carbapenem resistance in Klebsiella pneumoniae, frequently conferred by the blaKPC gene, is a major public health threat. We sequenced a blaKPC-containing strain of K. pneumoniae belonging to the emergent lineage ST941, in order to better understand the evolution of blaKPC within this species.

Multidrug-resistant Klebsiella pneumoniae and Escherichia coli isolates harboring New Delhi metallo-β-lactamase (NDM-1) were isolated from a patient who had returned to Canada from India. The NDM-1 gene was found on closely related incompatibility group A/C type plasmids. The occurrence of NDM-1 in North America is a major public health concern.

Hypervirulent strains of Klebsiella pneumoniae are associated with abscess formation, commonly hepatic, and metastatic spread, even in healthy patients. We describe a case of this clinical syndrome, genotypic and phenotypic features of the isolate, and briefly review epidemiology, clinical manifestations, and pathogenesis of this underappreciated syndrome.

KPC-2-producing Klebsiella pneumoniae isolates mainly correspond to clonal complex 258 (CC258); however, we describe KPC-2-producing K. pneumoniae isolates belonging to invasive sequence type 23 (ST23). KPC-2 has scarcely been reported to occur in ST23, and this report describes the first isolation of this pathogen in the Americas. Acquisition of resistant markers in virulent clones could mark ...

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An antibiotic-susceptible and hypermucoviscous clinical isolate of Klebsiella variicola (K. variicola 8917) was obtained from the sputum of an adult patient. This work reports the complete draft genome sequence of K. variicola 8917 with 103 contigs and an annotation that revealed a 5,686,491-bp circular chromosome containing a total of 5,621 coding DNA sequences, 65 tRNA genes, and an average G...