A 15-year-old boy fell ill with high fever, headache and lumbar pain.
In the course of the disease an acute renal failure occurred not requi
ring dialysis. Serological investigations showed high IgG- and IgM-ant
ibody titers against the Hantaan serotype of hantavirus. Hantavirus in
fection should be included in the differential diagnosis of acute rena
l failure of uncertain cause in children.