Emerging K1 serotype Klebsiella pneumoniae primary liver abscess: three cases presenting to a single university hospital in Norway

KEY CLINICAL MESSAGE: Community-acquired Klebsiella pneumoniae primary liver abscess (KLA) has been emerging worldwide over the past two decades and with high incidence in Asia. The presence of specific virulence characteristics is a risk factor for a syndrome with metastatic complications. This report signals an increasing emergence in Northern Europe.