Laboratory tests performed at admission showed marked leukocytosis (WBC count, 34,900/μL; neutrophils, 97%) and elevated levels of CRP (8.4 mg/dL), G-CSF (452 pg/mL), and interleukin-6 (IL-6; 81.4 pg/mL). The gene discussed is IL6; the disease is Increased total leukocyte count.