Laboratory investigations on admission revealed leukocytosis (white blood cell count 10,900/μL with 86% neutrophils), significantly elevated C-reactive protein (CRP) at 20.4 mg/dL (reference range <0.5 mg/dL), and procalcitonin (PCT) at 0.8 ng/mL (reference range <0.5 ng/mL). The gene discussed is CRP; the disease is Increased total leukocyte count.