Question: A boy, 6 months of age and previously healthy, was evaluated for unexplained fever of 2 weeks’ duration. He was ill appearing and had a high white blood cell count (19.5 × 109/L) and C-reactive protein (CRP) of 265 mg/L. The diagnosis of a liver abscess supposedly by a bacterial pathogen was made based on abdominal ultrasound (US) examination, which showed an abscess in the left lobe (segments 2 and 3). The abscess was drained and amoxicillin/clavulanic acid, which had been initiated before drainage, was continued for 5 weeks.