Acute focal bacterial nephritis in an infant referred with apnea caused by mixed infection with Enterococcus raffinosus and Escherichia coli.

A 38-day-old infant was referred to our hospital for evaluation of apnea, fever, and pyuria. Invasive bacterial infection, including meningitis, was suspected because of the presence of apnea. A contrast-enhanced CT scan revealed acute localized bacterial nephritis, and meningitis was ruled out.