A 41-year-oldpatient was hospitalized in hypotensive phase of nephropathia epidemica. The diagnosis was confirmed by serology. It is highly likely that the patient was exposed to infected aerosol of bank voles in endemic area of Sweden. The disease clinically manifested with fever, headache, abdominal and back pain, vision disturbances. Pathologic laboratory findings included thrombocytopenia, leukocytosis, increased values of C-reactive protein, blood urea and creatinine, abnormal chest X-ray and transient electrocardiogram abnormalities.