Laboratory evaluation (Table 1) revealed leukopenia and progressive thrombocytopenia (platelets 40 × 109/L, haemoglobin 111 g/L), elevated inflammatory markers (C-reactive protein [CRP] 128.53 mg/L, procalcitonin [PCT] 27.78 ng/mL, erythrocyte sedimentation rate 115 mm/h), hypoalbuminemia (24 g/L), hyponatremia (126.1 mmol/L), and fasting hyperglycaemia (15.4 mmol/L). The gene discussed is CRP; the disease is Decreased total leukocyte count.