Symptom or sign | Frequency (%) |
---|---|
* CNS symptoms like headache, nausea, vertigo and fatigue are commonly encountered in patients admitted to hospital. Some patients may have symptoms suggesting encephalitis, like confusion and sleepiness. | |
Fever | 98-100 |
Headache | 62-90 |
Back ache | 54-82 |
Abdominal pain | 43-67 |
Nausea / vomiting | 58-84 |
Myalgia | 27-69 |
Oliguria (< 400 ml/24 hrs) | 54-70 |
Polyuria (> 2 000 ml/24 hrs) | 97 |
Myopia | 12-36 |
Petechiae | 1-12 |
Diarrhoea | 12-20 |
Cough | 6-32 |
Vertigo* | 12-25 |
Finding | Frequency (%) |
---|---|
* Usually 3 to 7 days after the onset of fever | |
Proteinuria | 94-100 |
Haematuria | 58-87 |
Increased plasma creatinine * | 86-96 |
Thrombocytopenia | 75-90 |
Increased CRP | 52-60 |
Increased liver enzymes | 41-60 |
Hypoalbuminaemia/hypoproteinaemia | 24-64 |
Leucocytosis > 10.0 × 109 /l | 23-57 |