A nationwide genomic study of clinical <i>Klebsiella pneumoniae</i> in Norway 2001–15: introduction and spread of ESBLs facilitated by clonal groups CG15 and CG307

Abstract

The increase in Norwegian ESBL-producing KpSC during 2010-15 was driven by CG307 and CG15 carrying blaCTX-M-15. K. variicola ssp. variicola was a frequent cause of invasive KpSC infection, but rarely carried ESBLs.