Initial investigations
| Haemoglobin | 11.5 g/dl |
| Platelet count | 545×109/l |
| White cell count | 23.3×109/l |
| Neutrophil count | 17.2×109/l |
| C reactive protein (CRP) | 90 mg/l |
| Urea and electrolytes | Normal |
| Liver function tests | Normal |
| Erythrocyte sedimentation rate (ESR) | 52 mm/hour |
| Urine microscopy and analysis | Normal |
| Throat swab for bacterial culture | Sent |
| Blood culture for bacteria | Sent |
| Stool microscopy and bacterial culture | Sent |