Laboratory test: normal white blood cells (9.24 × 109/L), lymphocytes percentage (5.1%), decreased lymphocytes (0.47 × 109/ L), decreased eosinophil count (0 × 109/L), increased C-reaction protein (170.91 mg/L), increased procalcitonin (0.45 ng/ml), increased erythrocyte sedimentation rate (48 mm/h).