Unusual Hypermucoviscous Clinical Isolate of Klebsiella pneumoniae with No Known Determinants of Hypermucoviscosity

Abstract

Hypermucoviscosity is a characteristic of hypervirulent Klebsiella pneumoniae strains, which are capable of causing invasive disease in community settings. This study reports phenotyping and genomic analysis of an unusual clinical isolate of Klebsiella pneumoniae , P34, which exhibits hypermucoviscosity and yet does not harbor rmp ( r egulator of m ucoid p henotype) genes, which are known determinants of hypermucoviscosity ( rmpA and rmpD ).