Table 2 Occurence of different clinical and laboratory findings in patients with HFRS according to the causative agent

Fever > 39°C

89%

81%

Backache or abdominal pains

90%

61%

Blurred vision

40%

35%

Haemorrhagic manifestations ^a

55%

28%

Thrombocytopenia (< 50 × 10⁹cells/l)

42%

38%

Oliguria (< 0.5 l urine/24 hrs)

66%

39%

Serum creatinine (μmol/l) ^b

622 (89-1157)*

368 (77-1420)*

Urea (mmol/l) ^b

30 (5,1-76,2)*

17,6 (4,2-48,2)*

Dialysis requirement

49%

9%